Understanding Sleep Hygiene

“Sleep hygiene” sounds technical, but the idea is simple. It describes the everyday habits and the bedroom environment that help you sleep well. Just as good dental hygiene supports healthy teeth, good sleep hygiene supports more restful sleep.

It’s not a cure-all, and it won’t solve every sleep problem. But for many people, improving sleep hygiene is a helpful first step.

The four pillars of sleep hygiene

It can be useful to think of sleep hygiene in four areas: schedule, environment, habits and mindset.

1. Schedule

Your body has an internal clock, sometimes called your circadian rhythm, that likes regularity.

• Keep consistent sleep and wake times, including at weekends where possible.
• Allow enough time in bed. If you need to be up at 6:30 am and you’d like around eight hours of sleep, aim to start winding down well before 10:30 pm.
• Avoid big catch-up lie-ins. Sleeping in for hours at the weekend can make Monday mornings harder.

2. Environment

Your bedroom should feel like a place for rest.

Darkness

Light signals to your brain that it’s time to be awake. Blackout curtains or blinds, or a comfortable eye mask, can help, especially in summer or if you live near streetlights.

Temperature

Most people sleep better in a slightly cool room. Use bedding that you can adjust easily, and open a window if it’s safe and comfortable.

Noise

If noise disturbs you, earplugs or a steady background sound such as a fan can help mask sudden sounds.

Comfort

A supportive mattress and pillow make a difference. You don’t need anything expensive, just something that feels comfortable for you.

Clutter and devices

A tidy room can feel more restful. Try charging your phone outside the bedroom, or at least out of arm’s reach.

3. Habits

What you do during the day and evening has a big effect on sleep. Helpful habits include:

• Getting natural daylight in the morning
• Regular physical activity
• Limiting caffeine later in the day
• Avoiding large meals and alcohol close to bedtime
• Dimming lights and reducing screen use in the evening

We cover these in more detail in Everyday Habits That Support Better Sleep.

4. Mindset

Sometimes the biggest barrier to sleep is a busy mind.

• Have a wind-down routine. Repeating the same calming steps each night helps your brain recognize bedtime. See How to Build a Calmer Evening Routine.
• Write it down. Keep a notepad by your bed to jot down worries or tasks, so they don’t keep you awake.
• Don’t watch the clock. Checking the time repeatedly can increase stress. Turn the clock away from you.
• Get up if you can’t sleep. If you’ve been awake for what feels like a long time, get up, do something quiet in dim light, and return to bed when you feel sleepy.

A simple sleep hygiene checklist

Use this checklist to review your current habits:

• I go to bed and wake up at roughly the same times most days.
• I get some daylight within an hour of waking.
• I stop having caffeine by early afternoon.
• I have a regular wind-down routine.
• My bedroom is dark, cool and quiet.
• I keep screens out of bed.

Pick one item you don’t yet do, and focus on it for the next week.

Be patient

Sleep habits take time to change. It can take a few weeks of consistency before you notice a difference. Keep a simple sleep diary to track your progress and spot patterns.

When sleep hygiene isn’t enough

If you’ve improved your sleep habits and still have ongoing trouble sleeping, or if you snore heavily, wake up gasping, or feel extremely tired during the day, please speak to your doctor. Conditions such as insomnia and sleep apnea need professional assessment and treatment.

Further reading

• NHS, Insomnia
• Sleep Foundation, Sleep hygiene