How to improve sleep during the darker months

How to Improve Your Sleep During the Darker Months

As autumn arrives and the evenings become darker, you might notice that your sleep starts to change.

Perhaps you feel tired earlier in the evening but struggle to fall asleep when you go to bed. You might find it harder to get up in the morning, or feel as though you need more sleep than you did during the summer.

For people living in Northern Ireland, where daylight hours become considerably shorter during autumn and winter, these changes can be particularly noticeable.

The good news is that small adjustments to your daily routine, exposure to daylight and sleeping environment can help you maintain healthier sleep patterns throughout the darker months.

Quick Answer

You can improve your sleep during the darker months by maintaining a consistent sleep schedule, getting natural daylight early in the day, staying physically active and creating a comfortable sleeping environment.

Shorter daylight hours can influence your body's internal clock, which helps regulate when you feel awake and when you feel sleepy.

Spending time outdoors during daylight hours, limiting bright light before bed and keeping regular sleeping and waking times can help support your natural sleep cycle.

If you experience persistent sleep difficulties, excessive daytime tiredness or significant changes in your mood during autumn and winter, speak to your GP. These symptoms may occasionally indicate an underlying sleep disorder, a mental health condition or another medical issue.

Why Does Your Sleep Change During the Darker Months?

Your body follows an internal biological rhythm known as the circadian rhythm.

This rhythm helps regulate several important functions, including:

• Your sleep and wake cycle.
• Body temperature.
• Hormone release.
• Alertness and energy levels.
• Appetite and digestion.

Light is one of the most important signals that helps keep your circadian rhythm aligned with the day and night cycle.

When daylight enters your eyes, it sends signals to the brain that help regulate your internal clock.

During autumn and winter, shorter days and reduced exposure to natural light can affect these signals.

This may influence when you feel sleepy, how alert you feel during the day and how easily you wake up in the morning.

However, not everyone experiences significant seasonal changes in sleep.

Your working hours, lifestyle, health, stress levels and sleeping environment can also influence your sleep patterns.

How Does Daylight Affect Your Sleep?

Natural daylight helps your brain distinguish between daytime and night-time.

Exposure to light during the morning and throughout the day supports the normal timing of your internal body clock.

When you spend much of the day indoors, particularly during the darker months, you may receive less natural light than your body is accustomed to.

This can make it more difficult for some people to maintain a consistent sleep and wake cycle.

The Role of Melatonin

Melatonin is a hormone involved in regulating the timing of sleep.

Your body normally begins producing more melatonin as evening approaches and light levels decrease.

Exposure to light, particularly bright light at night, can affect the timing of melatonin release.

During the darker months, changes in daylight exposure may influence your circadian rhythm and contribute to changes in sleepiness or alertness.

However, melatonin is only one part of the sleep regulation process.

Sleep is also influenced by how long you have been awake, your health, your environment and your daily habits.

Why Morning Light Matters

Morning daylight helps signal to your body that it is time to be awake.

Getting outside shortly after waking can help reinforce a regular sleep and wake pattern.

Even on an overcast day, outdoor daylight is generally much brighter than typical indoor lighting.

You do not need bright sunshine to benefit from spending time outdoors.

A short morning walk, having breakfast near a window or spending time outside before starting work may help you establish a more consistent daily routine.

1. Keep a Consistent Sleep Schedule

One of the most useful ways to support healthy sleep is to maintain regular sleeping and waking times.

Going to bed and waking up at roughly the same time each day helps reinforce your body's internal clock.

During winter, it can be tempting to stay in bed longer because the mornings are dark and cold.

However, regularly changing your waking time can make it more difficult to maintain a consistent sleep pattern.

Try to:

• Wake up at approximately the same time each morning.
• Maintain a regular bedtime that allows enough time for sleep.
• Avoid large changes to your sleep schedule at weekends.
• Establish a relaxing routine before bed.
• Go to bed when you feel sleepy rather than forcing yourself to sleep.

Most adults need around seven to nine hours of sleep each night, although individual requirements vary.

If you have had a poor night's sleep, try not to compensate by spending excessive time in bed the following morning.

Maintaining a consistent waking time can help support your usual sleep pattern.

2. Get Outside During Daylight Hours

Shorter winter days can make it difficult to spend time outdoors, particularly if you leave home before sunrise and return after sunset.

However, making use of available daylight can help support your sleep and general wellbeing.

You could try:

• Taking a short walk during your lunch break.
• Spending time outdoors before starting work.
• Walking to a nearby shop rather than driving.
• Taking advantage of daylight at weekends.
• Spending time outside with family or friends.

For people living in Northern Ireland, even a short walk around a local park or green space can provide an opportunity to get natural daylight.

If you work indoors, consider whether you can arrange your breaks to include some time outside.

The aim is to increase your exposure to natural daylight during the day, particularly in the morning, rather than spending every available hour outdoors.

3. Create a Comfortable Sleeping Environment

Your bedroom environment can influence how easily you fall asleep and whether you remain asleep throughout the night.

During winter, central heating, cold temperatures and changes in household routines can affect your sleeping conditions.

A comfortable bedroom should generally be dark, quiet and cool.

Keep Your Bedroom at a Comfortable Temperature

An excessively warm bedroom can make it more difficult to sleep comfortably.

During colder weather, you may be tempted to leave the heating on throughout the night.

However, a cooler sleeping environment is generally preferable to an overheated room.

Choose bedding and nightwear that help you stay comfortable without becoming too hot.

There is no single ideal bedroom temperature for everyone.

Your age, health and personal comfort should be considered, particularly if you are more vulnerable to cold temperatures.

Reduce Unwanted Light

Streetlights, hallway lighting and electronic devices can make your bedroom brighter than you realise.

Consider using curtains or blinds that reduce unwanted light during the night.

If you need to get up, use a low level light where practical and safe.

During winter mornings, opening your curtains after waking can help expose you to available daylight.

Keep Noise to a Minimum

Unexpected noise can interrupt sleep.

If your bedroom is affected by traffic, household activity or other disturbances, consider practical ways to reduce the noise.

A quieter sleeping environment may help you maintain more consistent sleep.

4. Limit Bright Screens Before Bed

Phones, tablets, televisions and computers can affect your bedtime routine in several ways.

Bright light from screens can influence your circadian rhythm, while stimulating content may make it harder to relax.

For example, checking work emails, watching an exciting television programme or scrolling through social media may keep you mentally alert when you are trying to wind down.

Try to reduce unnecessary screen use during the hour before bed.

You could replace it with:

• Reading a book.
• Listening to relaxing music.
• Having a warm bath or shower.
• Gentle stretching.
• Preparing for the following morning.

If you need to use a device, reducing screen brightness and avoiding stimulating content may help.

The goal is to create a calmer transition between your daytime activities and bedtime.

5. Stay Physically Active During Winter

Regular physical activity can support better sleep, improve cardiovascular health and contribute to mental wellbeing.

However, darker evenings and colder weather can make it harder to maintain your usual exercise routine.

You may find yourself spending more time indoors or becoming less active than you were during summer.

Finding ways to remain active can help maintain a consistent daily routine.

Make Walking Part of Your Day

Walking is an accessible form of physical activity for many people.

A short walk during daylight hours can combine movement with exposure to natural light.

You do not need to complete a demanding exercise programme to benefit from regular activity.

If you are currently inactive, start with a manageable amount of walking and gradually increase your activity as appropriate.

Consider Indoor Activities

If the weather makes outdoor exercise difficult, you could try:

• Indoor walking.
• Swimming.
• Gentle home exercises.
• Yoga or stretching.
• Resistance training appropriate for your fitness.

Choose activities that suit your health and physical capabilities.

If you have a medical condition that affects your ability to exercise, ask your GP or treating clinician about an appropriate activity level.

Avoid Intense Exercise Too Close to Bedtime

Regular exercise can improve sleep, but vigorous activity shortly before bed may make it harder for some people to settle.

If you notice that late evening exercise leaves you feeling particularly alert, consider moving your workout to an earlier time.

Gentle stretching or a relaxing walk may be more suitable before bedtime.

6. Be Mindful of Caffeine and Alcohol

What you drink during the day can influence how well you sleep at night.

Caffeine

Caffeine is a stimulant found in coffee, tea, energy drinks, cola and some medicines.

It can remain active in your body for several hours.

Drinking caffeinated beverages late in the day may make it harder to fall asleep or reduce your sleep quality.

If you struggle to sleep, consider limiting caffeine during the afternoon and evening.

You could switch to decaffeinated drinks or caffeine free alternatives.

Individual sensitivity varies, so pay attention to how caffeine affects your own sleep.

Alcohol

Alcohol may initially make you feel sleepy, but it can disrupt sleep later in the night.

It may contribute to more frequent waking and poorer overall sleep quality.

Alcohol can also worsen certain sleep conditions, including obstructive sleep apnoea.

If you are experiencing sleep difficulties, reducing alcohol consumption may help.

7. Avoid Long or Late Afternoon Naps

When the afternoons become darker, you may feel tempted to have a nap.

A short nap can sometimes improve alertness, particularly after a poor night's sleep.

However, long naps or sleeping late in the afternoon may make it harder to fall asleep at your usual bedtime.

If you find that daytime sleeping affects your night-time rest, consider limiting naps or avoiding them altogether.

Persistent daytime sleepiness should not simply be managed by taking increasingly frequent naps.

If you regularly struggle to stay awake during the day despite allowing enough time for sleep, speak to your GP.

8. Establish a Relaxing Evening Routine

Your body may benefit from a consistent period of relaxation before bedtime.

During winter, the earlier onset of darkness can make evenings feel longer, but it does not necessarily mean you need to go to bed earlier.

Instead, establish a routine that helps you gradually prepare for sleep.

For example:

• Finish demanding work or household tasks before your usual bedtime.
• Reduce bright lighting in the evening.
• Avoid large meals immediately before bed if they cause discomfort.
• Choose a relaxing activity.
• Keep your bedroom comfortable.
• Go to bed when you feel sleepy.

If you find yourself lying awake for a prolonged period, it may help to get out of bed and do something quiet and relaxing in dim lighting.

Return to bed when you begin to feel sleepy.

Try not to repeatedly check the time, as this can increase frustration and anxiety about not sleeping.

9. Manage Stress and Winter Mood Changes

Stress, anxiety and changes in mood can affect your sleep.

During the darker months, some people experience changes in energy, motivation and emotional wellbeing.

You may notice that you feel less inclined to socialise, spend more time indoors or struggle to maintain your usual routine.

These changes can influence your sleeping habits.

Practical steps that may help include:

• Maintaining regular contact with friends and family.
• Spending time outdoors during daylight hours.
• Keeping a manageable daily routine.
• Making time for enjoyable activities.
• Practising relaxation techniques.
• Seeking support if stress or low mood becomes difficult to manage.

If you are experiencing persistent anxiety, low mood or sleep difficulties, speak to your GP.

Can Seasonal Affective Disorder Affect Your Sleep?

Seasonal affective disorder, often shortened to SAD, is a form of depression that follows a seasonal pattern.

Symptoms commonly develop during autumn or winter and improve during spring or summer, although other patterns are possible.

Sleep changes can be one of the symptoms.

Some people with SAD experience increased sleepiness and find it difficult to wake up in the morning.

Others may have difficulty falling asleep or staying asleep.

Additional symptoms can include:

• Persistent low mood.
• Loss of interest in usual activities.
• Reduced energy.
• Difficulty concentrating.
• Changes in appetite.
• Increased desire to sleep.
• Withdrawal from social activities.

Experiencing occasional tiredness during winter does not necessarily mean you have SAD.

However, if changes in your mood and sleep are persistent, affect your everyday life or return at a similar time each year, speak to your GP.

Treatment may include psychological therapies, medication or light therapy, depending on your individual circumstances.

Light therapy is not suitable for everyone and should be discussed with a healthcare professional, particularly if you have an eye condition or take medication that increases sensitivity to light.

Should You Take Melatonin to Help You Sleep?

Melatonin is a hormone involved in regulating the timing of sleep.

Although melatonin supplements are widely available in some countries, melatonin is a prescription only medicine in the UK.

It may be prescribed for certain sleep conditions when clinically appropriate.

However, it is not a universal treatment for winter tiredness or difficulty sleeping.

The appropriate treatment depends on the underlying cause of your sleep problem.

If you are considering melatonin, speak to your GP or pharmacist rather than purchasing unregulated products online.

Do not assume that a supplement is safe simply because it is described as natural.

Can Poor Sleep Affect Your Weight?

Sleep and weight management are closely connected.

Insufficient or disrupted sleep can influence appetite, food choices, energy levels and the ability to maintain regular physical activity.

For example, after a poor night's sleep, you may feel more tired, find it harder to exercise or experience changes in hunger.

Sleep restriction can also affect hormones and other biological processes involved in appetite regulation.

However, the relationship between sleep and body weight is complex.

Poor sleep does not automatically cause weight gain, and improving sleep does not guarantee weight loss.

Your diet, physical activity, medication, genetics, medical conditions and other factors also influence body weight.

Why Sleep Matters During Weight Management

If you are working towards a healthier weight, maintaining a regular sleep routine can support your wider health goals.

Adequate sleep may help you feel more energetic and better able to maintain consistent eating and activity habits.

It is worth considering sleep as part of your overall health rather than treating it as something separate from weight management.

If you regularly experience poor sleep, addressing the underlying cause may help improve your general wellbeing.

What If You Work Night Shifts During Winter?

Shift work can make maintaining a consistent sleep routine particularly challenging.

If you work overnight or regularly change between day and night shifts, your sleeping hours may not align with your body's natural circadian rhythm.

During winter, reduced daylight exposure can make it even more difficult to establish a regular pattern.

Where possible, try to:

• Maintain a consistent sleep schedule around your shifts.
• Use curtains or blinds to keep your bedroom dark when sleeping during the day.
• Reduce noise and household interruptions.
• Plan your caffeine intake so it does not interfere with your intended sleep.
• Allow enough time for rest between shifts.
• Seek daylight exposure at appropriate times for your working schedule.

If you experience persistent sleep difficulties related to shift work, speak to your GP or occupational health service.

When Should You Speak to Your GP About Sleep Problems?

Occasional poor sleep is common and does not always indicate a medical condition.

However, persistent sleep problems should not be ignored.

Consider speaking to your GP if:

• You regularly struggle to fall asleep or stay asleep.
• Your sleep difficulties have continued for several weeks or months.
• You experience excessive daytime sleepiness.
• You snore loudly or someone notices pauses in your breathing during sleep.
• You regularly wake feeling unrefreshed.
• Your sleep difficulties are affecting your work, relationships or daily activities.
• You experience persistent low mood or significant seasonal changes in your mental health.

Your GP can assess possible causes and discuss appropriate treatment options.

For persistent insomnia, cognitive behavioural therapy for insomnia, known as CBT-I, is an established treatment approach.

Sleeping tablets are not usually recommended as a long term solution because of their potential risks and limitations.

If you feel dangerously sleepy, avoid driving or operating machinery until you are sufficiently alert.

Looking After Your Health During the Darker Months

The darker months can affect more than your sleep.

Changes in daylight, physical activity, eating habits and daily routines may influence your wider health and wellbeing.

Maintaining regular sleeping hours, spending time outdoors and staying active can help support your health throughout autumn and winter.

However, if you are experiencing persistent tiredness, unexplained weight changes or other symptoms, it is important not to assume that the season is the only cause.

Your GP can help investigate whether an underlying health condition requires attention.

Looking for Weight Management Support in Northern Ireland?

Sleep is one part of a wider approach to maintaining a healthy weight.

If you are finding weight management difficult, factors such as appetite, physical activity, medication, medical conditions and sleeping patterns may all be relevant.

Keltoi Wellness provides doctor led remote weight management support for adults across Northern Ireland and the wider UK.

Our service offers individual clinical assessment and ongoing patient support, helping patients explore appropriate weight management options alongside sustainable lifestyle changes.

Keltoi provides administrative and patient support, while clinical and prescribing decisions are made independently by the treating doctor.

Where prescription treatment is considered, an appropriately registered doctor will assess whether it is suitable based on your medical history, current health and individual circumstances.

Prescription treatment is not guaranteed.

If you would like to learn more about our approach to weight management, you can explore our services below.

Explore Weight Management at Keltoi Wellness

Find Out How Keltoi Works

Sources

1. NHS. Insomnia. Information on common causes of sleep difficulties, practical sleep advice and when to seek medical help.

1. NHS. How to fall asleep faster and sleep better. Guidance on healthy sleeping habits, bedtime routines and improving sleep quality.

1. NHS. Seasonal affective disorder (SAD). Information on seasonal depression, sleep changes, symptoms and treatment options.

1. NHS. Sleep apnoea. Information on sleep related breathing problems, symptoms and when to seek medical assessment.

1. NHS. About melatonin. Information about melatonin, its prescription use and treatment considerations.

1. NHS. Physical activity guidelines for adults aged 19 to 64. Guidance on regular physical activity and its wider health benefits.