Sleep hygiene: 8 proven ways to get a healthy and good night's sleep

Your behaviours throughout the day - not just before you go to bed - can affect how well you sleep. Daily routines and habits, food choices, lifestyle, physical activity, work - these factors all contribute to the quality of your sleep and can support or disrupt your nightly rest.

With specialists from many fields, I have looked at the principles of sleep hygiene and what the scientific research on the subject suggests. You'll learn practical tips that you can put into practice today so you can wake up rested tomorrow.

Sleep hygiene.

See also:

• Hug Day
• How to look after your mental health during SAD

What is sleep hygiene?

Sleep hygiene is a set of rules and habits to ensure good quality sleep and overall health. Incorporating these practical tips into your daily routine has many benefits for your physical and mental health.

Sleep hygiene is a great way to improve the quality of your sleep.

When we are sleepy, we have more strength and energy to perform, a better sense of wellbeing, and our body functions properly, thanks to the healthy functioning of all its systems, including the nervous, digestive and endocrine systems.

I am sleepy! What exactly does this mean? What is sleep quality?

When was the last time you told yourself you were sleepy? What does the quality of your sleep depend on? 

It is affected by several factorsand:

• total sleep duration, 
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• depth of sleep, 
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• number of intermittent sleep phases, 
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• moderate, calm breathing, 
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• comfort during sleep,
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Effective sleep is deep, uninterrupted sleep, and you wake up rested and 'renewed'. According to scientific studies, people with high quality sleep tend to have better physical and mental health than people who suffer from sleep disorders.

There are two main phases of sleepand: 

• REM (Rapid Eye Movement). During this phase, the brain is very active and the body is 'switched off'. Rapid eye movements occur during this time, and our dreams are particularly vivid and realistic.
• NREM (pronounced Non-Rapid Eye Movement). During the NREM phase, the brain slows down its activity and the body remains in a relaxed state. The body regenerates and the brain processes and consolidates information. The NREM phase is divided into three sub-phases, of which N3 is the deep phase - the most important for physical regeneration.

Sleep hygiene tips - proven ways to sleep better

Every sleeper can adapt their sleep hygiene regime to suit their needs and abilities. Making even a few changes can make it easier to fall asleep, ensure restorative sleep and a crisp morning. Read how to improve the quality of your sleep and implement these healthy sleep rules even today.

1. Set consistent bedtime and rising times

Sleep hygiene starts as early as the morning. Try to get up and go to bed at the same time each day. Maintaining this rhythm will help regulate your biological clock and make falling asleep and waking up easier. Arrange your daily schedule to ensure you get around 7-8 hours of uninterrupted sleep. 

Keeping to a consistent schedule is not only a way to get a good night's sleep, but also to reduce daytime sleepiness, maintain energy levels and the desire for a variety of activities.

What does the scientific research say?

Research work suggests that the human body likes patterns, habits and regularityand. Our biological clock is set to a 24-hour cycle, which corresponds to the length of the day and night. Adequate regulation of the biological rhythm is crucial for good health and wellbeing, as it helps maintain healthy sleep, metabolism, energy levels and hormone secretion .

2. Avoid blue light 2 hours before bedtime

Bzz-bzz. Ping. Dzzz.

Smartphones, tablets, laptops are with us all day long. We keep them in our pockets, on our desks, or cuddling in our bags. They are with us more of the time than those closest to us. And despite the fact that many of us work at a computer for around eight hours a day, in the evening we like to keep checking what's on the internet.

We are scrolling (or, if you prefer, exercising our thumbs), absorbing information and... blue light, which is unfavourable for sleep. Of course, it supports the regulation of the diurnal rhythm and is needed during the day. It has a positive effect on mood and concentration, but unfortunately, nowadays blue light accompanies us even after dark - from TV screens, tablets or smartphones.

What does the scientific research say?

Blue light interferes with the secretion of melatonin (the so-called "sleep hormone"). It "fools" our body into thinking the day is still going on. This can stimulate us and cause sleep problemsand.

"A better way than a smartphone is to open a window and drink water, because our body starts to cool down on its own when we get tired. This signals to it that it's time to go to sleep," adds the psychologist.

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PS - If you watch a really funny cat video, leave it in the comments below the article.

See also:

• World No Mobile Phone Day
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3 Make sure you have a comfortable place to sleep

On Martha Stewart's (businesswoman and TV personality) blog, we can learn how to cheaply and simply make your bedroom look cosy and functional to promote sleep. You can use the tips regardless of the style and size of the room. You can even create a cosy atmosphere in a rented room or... even in a rented room or dormitory.

Some inspiration from Martha Stewart:

1. Pick nice-to-touch textures. There's nothing more pleasant than taking the first step of the day on a hairy rug, sinking into a soft cushion or snuggling up to a good quality cotton pillowcase.
2. Take care of your bed.
3. Care for a relaxing scent in the bedroom. Find a scented candle, scented diffuser or essential oil to calm you down. Recommended scents include lavender, sandalwood, chamomile, hyacinth, rosemary, mugwort, bergamot, wild rose.
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4. Maintain a suitable temperature in the bedroom and air it out half an hour before bedtime. The optimum temperature is 16-18°C. Fresh air and a gentle chill are conducive to falling asleep.
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5. Use natural materials, plants and decoration elements. Adding flowers or elements of wood, bamboo or woven visuals will make your bedroom feel calm, cosy and natural.
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6. Pay attention to lighting. For creating a cosy atmosphere, diffused light, warm shades and light bulbs with adjustable brightness are recommended.
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7. My favourite tip: create a room that is full of your happiest memories - nostalgia is the most cosy feeling. Surround yourself with photos, favourite mementos or books that evoke fond memories.
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What does the scientific research say?

The bedroom should serve two activities - sleeping and making love. Our mind forms positive and negative associations with the places we spend timeand. 

If we use the bedroom for work or watching TV, for example, this can lead to unpleasant associations with a place that should be associated with sleep and rest .

As an analogy, if you are lying in bed and can't sleep, instead of getting tired and turning from side to side - get up. Have a drink of water, open a window, read a book. Don't create a situation where you associate lying in bed with not being able to sleep - this will lead to a self-perpetuating spiral.

4. Use naps wisely

Sometimes when my smartphone battery is approaching 5% and I'm in a hurry, I try to charge it in a few minutes. A quick charge is a saviour... Unfortunately, this form of 'recharging' doesn't work when you're trying to make up for lack of sleep.

Do you know what 'sleep debt' is? It is, in simplest terms, a lack of sufficient sleep. The number of hours you sleep is less than the number of hours your body actually needs to rest and recuperateand.

It's not possible to get enough sleep.

It is impossible to 'sleep off' or 'sleep to spare'. Sometimes we try these ways precisely through naps. There are several types of naps, such as:

• Coffee nap ("coffee nap") - involves drinking coffee and lying down for 15-20 minutes - after which time the caffeine kicks in and stimulates you.
• The coffee nap is a good way to get a good night's sleep.
• Power nap ("power nap") - lasts a maximum of 30 minutes and is usually taken at lunchtime to boost energy levels.
• Power nap - a short, usually half-hour nap used at the same time every day (often by older people).

What does the scientific research say?

In adults, a nap should not exceed 30 minutes. This length protects against entering the deep sleep stage, in which brain activity slows downand. When awakened from this stage, we may be slower to respond to stimuli, feel discombobulated, disoriented and find it harder to associate. A short, controlled nap helps to refresh the body and mind, but does not disrupt the diurnal rhythm . 

5. Taste the diet for good sleep

For the normal rhythm of day and night, the body needs a number of chemicals, amino acids, enzymes, nutrients and hormones. These include, but are not limited to, melatonin, serotonin, potassium, magnesium, B-vitamins.

Some foods are precursors to these compounds (promote their formation) and regulate our individual diurnal cycle. Adding these foods to our diet can have a positive effect on falling asleep, deeper and more quality sleep and a reduction in the number of awakenings during the night.

Recommended sleep foods to eat for dinner are:

• nuts (walnuts, pistachios, almonds), 
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• bananas, 
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• kiwi, 
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• white rice, 
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• fatty fish, e.g. salmon, rainbow trout, herring, mackerel,
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• lean meat, e.g. turkey,
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• herbs, e.g. mint herb, lemon balm (there are some nice flavoured teas with lemon balm available!), valerian,
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It is also worth looking out for products that may make it harder to fall asleep and impair the quality of sleep. 

Before going to bed, avoid:

• fatty, hard-to-digest foods, e.g. fast-food, fatty cream, fried meat (they put a strain on your digestive system and the noisy digestive process can keep you awake!),
• alcohol (worsens sleep quality), 
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• caffeine (consume a maximum of 9 hours before bedtime),
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• high-sugar products, e.g. sweets, sweetened drinks (cause insulin release, which can act as a stimulant),
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• moisturising foods, e.g. watermelon, grapes, black and green tea, nettle, horsetail (they can rouse you from sleep or force you to go to the toilet once you are comfortable - the worst).

What does the research say?

Researchers suggest that certain products promote sleep and improve sleep qualityand. But what about the famous glass of bedtime milk? Unfortunately - milk does not have any sleep-promoting properties. 

Milk contains sleep-promoting melatonin, tryptophan and vitamin D, but there is simply not enough of these in one glass to significantly affect sleepand. If you feel that milk helps you fall asleep, it may be due to fond childhood associations with your mum bringing you warm milk at night.

6. Avoid stimulants before bed

Many scientific publications have already been written about the harmfulness of excessive alcohol consumption, cigarette smoking and drug use. Surely you are aware of how they debilitate the body and the mind.

The use of stimulants before bedtime can significantly impair the quality of sleep, resulting in poorer performance the following dayand. How do individual substances harm sleep?

• Caffeine. Research suggests that caffeine, which is a stimulant, can interfere with sleep. It stimulates the body and makes it more difficult to fall asleep, shortens total sleep time and impairs sleep quality.
• Caffeine.
• Alcohol. This is an insidious substance -- it may initially induce a feeling of fatigue and help you fall asleep, but it has a very negative effect on the quality of sleep. It causes its interruption and the inability to enter the NREM - the deep phase of sleep during which the body is fully rested and relaxed.
• Nicotine. Smoking before bed can lead to arousal, as nicotine is a stimulant. Smokers often experience shortened REM sleep cycles, leading to impaired memory and concentration during the day. They also fail to benefit from the deep sleep phase and do not fully regenerate their bodies.
• Drugs. These substances can have different effects on sleep depending on the type of drug, amount and frequency of use. It should be noted that each will be devastating to the psyche and body.

What does the scientific research say?

Researchers indicate that the use of stimulants not only has negative effects on the body (they degrade organs and entire systems), the psyche (they can lead to the development of mental disorders), but also on sleepand. The use of stimulants especially before bedtime can lead to sleep disorders such as insomnia or night terrors .

Where to find help to quit stimulants?

• How to quit smoking? Ministry of Health guide
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• Decision: less alcohol - Ministry of Health guide
• National Office for Drug Prevention - a guide

7. Relax before bed

Relaxation is one of the most effective methods of improving sleep quality. Consciously relaxing the body and calming thoughts has a soothing, calming effect and prepares the body for rest. 

Regular relaxation before bed has many benefits for physical and mental healthand.

• Reduces stress, which in turn promotes better and more restorative rest.
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• Improves mood, helping to combat mood disorders such as depression and anxiety.
• Improves mood.
• Increases the secretion of sleep hormones, such as melatonin, which regulates the diurnal rhythm of sleep and wakefulness.
• Reduces muscle tension and calms the nervous system.
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• Improves sleep quality by increasing the time spent in the deep sleep phase, which promotes better mood, memory, concentration and well-being.

What does the scientific research say?

Scientists suggest that using body and mind relaxation positively affects all of our functioning throughout the day and nightand. These are simple, mostly free ways to achieve peace of mind and body. However, the researchers emphasise that being systematic and making it a habit is key, such as a daily session before bed or a five-minute breathing workout three times a day .

Recommended relaxation techniques include:

• breathing techniques (e.g. diaphragmatic breathing, pranayama in yoga, 4x4),
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• progressive muscle relaxation using the Jacobson method,
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• Schultz autogenic training,
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• meditation (e.g. mantras, spiritual, movement),
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• massage (e.g. Swedish, hot stone, acupressure mat),
• visualisations,
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• music therapy,
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"Physical activity on a daily basis is important, but it is advisable to choose moderate-intensity exercises before bedtime so as not to stimulate the nervous system. This includes yoga or stretching, for example - anything that allows you to practice calm breathing," adds the physiotherapist.

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8. Get stress under control

Stress accumulates in our body and mind like small pebbles in a backpack. Negative thoughts, niggling thoughts, tension at work, stress before a university exam, everyday problems, even such inconspicuous ones as an unpaid bill. Pebble to pebble and it turns out that at the end of the day we are carrying a very heavy baggage of stress.

It is difficult to fall asleep and harness the nourishing power of sleep when your muscles are tense and your head is racing with negative thoughts, 'what would I do differently' scenarios, and music in the background that you can't get out of your head.

Stress is the enemy of sleep. Psychologist Jagoda Turowska explains:

Stress is the enemy of sleep.

"Stress reduces the body's ability to fall into a deep sleep phase, during which our body has the best chance of rest and recovery. When we go to bed tense and nervous, we do not have the opportunity to rest. The next day we are tired, irritable and in a bad mood from the morning. This is how the stress spiral fuels itself," adds the psychologist.

Sleep hygiene and age - what's worth knowing?

As we age, our sleep needs change. Below you will read about what needs people have depending on their age or stage in life.

Sleep hygiene in infants and children

Sleep hygiene in babies and children is very important, as the brain and body are developing very intensely during this period. Their little bodies need to be rested and regenerated to cope with the big changes. Find out below what the recommended amounts of sleep are depending on the age of the child.

"Adequate sleep in children helps strengthen the immune system, has a positive effect on mood, focus, but also on growth, body weight and energy levels," adds the psychologist.

Adequate sleep in children helps strengthen the immune system, has a positive effect on mood, focus, but also on growth, body weight and energy levels.

A well-rested child is a satisfied child. A satisfied child is a satisfied and... rested parent.

Satisfied child is a satisfied and... rested parent.

Sleep hygiene in an adolescent

Adolescence is a time of intense changes in the teenage body. During this time, the body and mind are growing and maturing, which requires large amounts of energy, nutrients, but also regeneration.

Teenagers need between 8 and 10 hours of sleep a dayand. However, due to their busy lifestyles (integrating with peers) and the demands of school (getting up early, homework, extracurricular activities), they cannot always sleep for this long. 

Regular and sufficient sleep allows for better recovery of the body and mind, which translates into a better sense of wellbeing and the ability to focus on daily tasks, especially during school.

Sleep hygiene in students

Students have to deal with the academic challenges and stress of exams, essays and defences. And, after all, it is not just studying that a student lives for - they also want to experience student life, socialising with others and often trying to combine this with gainful employment.

Students have a lot of work to do.

Student has a lot on their plate and little time. Juggling studies at university, responsibilities from work and a social life is not easy, and a day has only 24 hours. 18-25 year olds should get around 7-9 hours of sleep. Unfortunately, the amount of responsibilities (and, paradoxically, pleasures) translates into poor sleep quality.

Suggestive behaviours affecting the quality of students' sleep are:

• getting too little sleep,
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• studying at night when tired,
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• abuse of stimulants (e.g. coffee, energisers),
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• irregular eating of poor quality,
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• neglecting to relax the body and mind - "living in a rush",
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A 2021 research study from the University of Kansas found that negligence of sleep hygiene in students is linked to poorer academic performance.

Implementing the sleep hygiene principles from this article is the first step to finding balance during this interesting and intense time of life. Maybe start with a handful of study mix a day, practice breathing during a boring lecture and swap your energiser for green tea.

Sleep hygiene.

Sleep hygiene in adults

I remember when I was a child and going to bed seemed like a boring waste of time. Nowadays, I often even look forward to when I can go to bed. Adults aged 18-54 should get around 7-9 hours of sleepand.

The causes of sleep problems in adults areand:

• stress and anxiety - tension at work, family relationships, financial problems, raising children,
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• unhealthy lifestyle - lack of regular physical activity, nutritionally poor diet, overwork, use of stimulants,
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• hormonal changes - disorders of the hormonal system, chronic diseases, menopause,
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• lack of sleep hygiene - not getting enough sleep, poor sleeping conditions, inappropriate use of naps.

It's worth finding time to practice sleep hygiene. If you have trouble with this - do it with your partner or another person. With two people it's easier!

Sleep hygiene in seniors

People aged 55+ should sleep for an average of 8 to 10 hours. This depends on their health and activity level. At this age, sleep is greatly affected by chronic illnesses, which can interfere with healthy sleepand.

Diseases such as diabetes, heart disease, lung disease and rheumatism can affect sleep, causing discomfort, pain and other unpleasant sensations making it difficult to achieve a satisfying night's sleep.

Older people often go to bed earlier and get up with the hens. They often take naps because they feel tired. If you have a senior citizen in your family, tell them about how to improve their sleep so they can enjoy their golden years to the fullest, rather than oversleeping them!

Senior citizens are often the ones who are tired.

Seniors often take a nap during the day and it can be nourishing for them. However, they should make sure it is not too long (up to 30 minutes) and not too late (up to 14:00).

How do Poles (not) sleep?

The results of a wide survey conducted by UCE Research and the ePsychologists platform were published in 2023. The respondents were 1007 Poles aged 18-80. Respondents were asked about, among other things, satisfaction with sleep and what makes it difficult for them to fall asleep.

The most interesting data suggests that:

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  49.9% of people are dissatisfied with their sleep quality

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  43.9% of people are satisfied with their sleep quality

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  Polish people can't sleep because of financial worries (39.4%), stress 37.9%, worrying about their future 30.3% and waking up repeatedly during the night (29.3%)

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In the previous 2021 survey, 39.9% of respondents were dissatisfied with their sleep quality (currently 49.9%) and 55.9% were satisfied (currently 43.9%). The trend is worrying, and according to the authors of the survey, awareness of the importance of sleep hygiene and its impact on life is low.

Interesting analysis

In 2017, Marco Hafner's study Why sleep matters - the economic cost of not getting enough sleep was published. Using the most recent survey data on more than62,000 people in 2015 and 2016, the authors summarised, among other things, how sleep affects quality and length of life and "how much sleep disorders cost".

The factors leading to short sleep were also identified and summarised as follows:

Lifestyle and health factors

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  BMI: people with a BMI >25 (overweight) sleep, on average, between 2.5 minutes and 7 minutes less per night than people with a normal BMI.

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  Smokers: smokers sleep, on average, 5 minutes less per night than non-smokers.

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  Sweet drinks: people who drink more than two sweet drinks per day sleep an average of 3.4 minutes less per night than people who consume fewer sweet drinks.

Smokers sleep an average of 3.4 minutes less per night than people who consume fewer sweet drinks.
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  Physical activity: people doing less than 120 minutes of physical activity per week sleep on average 2.6 minutes less per night than people who report doing more than the recommended 150 minutes of physical activity per week.

• The following is a summary of the results.
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  Mental health: people at medium or high risk of mental health problems sleep on average 17.2 minutes less per night than those at low risk of mental health problems.

• The number of minutes of physical activity per night is lower than that of people who report doing more than the recommended 150 minutes of physical activity per week.

Personal and socio-demographic factors

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  Financial problems: people with financial problems sleep, on average, 10 minutes less per night than people without such problems.

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  Unpaid care: people who provide unpaid care to family members, close relatives or friends sleep on average about 5 minutes less per day than people who do not provide unpaid care.

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  Children: people with dependent children under the age of 18 living in the same household sleep, on average, 4.2 minutes less per day than people without dependent children under the age of 18.

• The number of children in the same household is about 5 minutes less per day than people who do not provide unpaid care.
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  Gender: Men sleep on average about 9 minutes less per day than women.

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  Marital status: Persons who reported being separated from their partner sleep on average 6.5 minutes less per day than those who reported being married. Similarly, people who reported that they had never been married sleep on average 4.8 minutes less than those who were married.

Psychosocial and occupational factors in the workplace

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  Unrealistic time pressure: people reporting unrealistic time pressure and workplace stress sleep an average of 8 minutes less per night than those reporting low time pressure.

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  Intermittent working hours: people working irregular hours (e.g. shift work) sleep on average 2.7 minutes less per night than those working regular hours.

• Individuals who work irregular hours sleep on average 2.7 minutes less per night than those working regular hours.
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  Commuting: people commuting between 30 and 60 minutes (one way) sleep on average 9.2 minutes less per night compared to those commuting between 0 and 15 minutes (one way). Commuters commuting more than 60 minutes (one way) sleep an average of 16.5 minutes less per day compared to those who only commute short distances.

Knowing the impact of these factors on sleep quality can help you manage your life, your health and even your work better. If you are in a position to change something to improve your sleep (e.g. quit smoking, change to a more flexible job or increase physical activity) - plan it now.

These changes will positively affect how you sleep, so also how you recover, your mood and whether you are healthy. Remember, you will never get "enough" sleep, and even less sleep... after you die.

A sleep-deprived employee... costs money

According to the author, assuming there are 250 working days per year, an employee sleeping less than six hours loses about six days of work per year due to absenteeism or absence from work more than an employee sleeping between seven and nine hours. A person sleeping between six and seven hours loses about 3.7 more working days per year on average.

Insufficient sleep among the populations of five OECD countries (US, UK, Japan, Germany and Canada) cost up to $680 billion in economic output each year. These costs increase over time, even if we assume a constant proportion of people sleeping too little in the future.

In summary, sleep deprivation negatively affects workers by adversely affecting their health and wellbeing, and is also costly for employers due to the loss of working time for employees, resulting in large economic losses.

Solving the problem of insufficient sleep, including by identifying factors, lifestyle changes and education about sleep hygiene are a win-win for individuals, employers and society.

Sleep disorders - when to see a doctor?

Any of us may experience sleep problems in our lives. However, prolonged discomfort should be a signal to us that a specialist should be consulted.

Do you sometimes feel during a sleepless night that you are in it alone? Everyone is sound asleep and you're turning over to your left side for the third time at 02:54. No, you are not in this alone. A psychologist shares his experience with patients:

"The practice also sees patients who tend to wake up a lot during the night or can't get to sleep, and it turns out that this is the result of elevated levels of hormones in the blood (adrenaline, noradrenaline or cortisol). It is worth seeing a GP to find out the cause of the sleep disorder," adds the psychologist.

Symptoms of sleep disorders

The most common symptoms of sleep disorders areand:

• difficulty falling asleep or maintaining sleep,
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• excessive daytime sleepiness,
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• interrupted sleep,
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• dreaming nightmares,
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• stimulation of the body during sleep (rapid breathing, kicking, grinding of teeth), 
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• snoring or sleep apnoea,
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It is important to remember that each person may experience sleep problems differently, and symptoms may vary depending on the cause and type of sleep disorder.

Where to seek help

It is worth reacting quickly so that the problem does not get worse. If, despite attention to sleep hygiene, symptoms persist or worsen, see your GP. If your sleep problems have a psychological basis, it is worth seeing a psychiatrist or psychologist. The specialists will advise you on how to regulate your sleep.

Martha shares her experience on one psychology forum:

"I was struggling to fall asleep, then the awakenings at night came on, and after a month I wasn't sleeping at all. I was a wreck... I went to the doctor, who referred me for tests and it turned out that I had hormonal problems and my stressful job was wearing me down. After a few weeks I also went to a psychotherapist. I recovered through medication, balancing my hormones and talking to a therapist, but I regret that I procrastinated. If you feel something is wrong, don't wait."

Visiting a psychologist or psychotherapist is not just about "talking about a difficult childhood". People struggling with sleep disorders can, with the help of a professional, spot certain unfavourable thought patterns or behaviours, receive practical tips, and exercises on how to improve the quality of their sleep.

Sleeping disorders can also be a great way of improving sleep quality.

Maybe you will be interested in other articles on health:

• How to take care of your mental health during a period of lowered mood?
• Blood tests: how to prepare, when and where to do them
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• Cortisol testing: standards, symptoms of excess and deficiency

Summary

Simple changes in habits before bedtime such as swapping your smartphone for a book, cutting down on smoking or practising breathing exercises can result in better rest and  a better mood the next day. Memes of a sleepy owl, drinking coffee "and you'll be a git" will continue to make you smile, but also relieved because it won't affect you anymore. 

Thank you for reading the article. Share it with a loved one and try to implement one rule today. Have a good night!