Sleep is essential to both your physical and mental health, so it is little wonder that a bad night leaves you feeling off in almost every way. Yet for many people, a good night’s sleep feels harder to come by than it should.
Stress, illness and the light from our screens can all get in the way. The good news is that small, consistent changes to your routine can make a real difference. Here is where to start.
01Why sleep matters for your health
Getting consistent, adequate sleep is as important to your health as a good diet and regular exercise. While you sleep, your body gets on with repairing itself, supporting healthy brain function and helping your heart and blood vessels recover from the day.
Good sleep is linked to a reduced risk of heart disease, diabetes, high blood pressure and stroke, and it helps your body maintain a healthy balance of hunger hormones and insulin. Your brain benefits too: sleep supports learning, memory, attentiveness and decision-making, and a lack of it is closely tied to mental health difficulties such as anxiety and low mood.
02How much sleep do you actually need?
This depends mostly on your age. Adults aged 18 and over generally need between seven and nine hours a night, and those hours need to come together, not in fragments. A short night followed by a long lie-in at the weekend does not give your body the same chance to repair itself as a steady, consistent sleep-wake cycle.
Aiming for the same seven-to-nine-hour window every night, weekends included, is the most reliable way to get healthy sleep.
03Three ways to sleep better
Turn your bedroom into a sleep-friendly space
Start with your sleeping environment:
- Invest in a decent mattress and pillow, proper support for your spine and neck makes a real difference to comfort.
- Keep it cool, around 18°C is generally best. Your body temperature naturally drops overnight, and a room that is too warm works against that.
- Keep your bedroom for sleeping, working or relaxing in bed can weaken the mental association between your bedroom and sleep.
- Cut the noise and light, white noise and blackout curtains can help if street light or noise is a problem.
Wind down before bed
Carrying stress or excess energy into bed makes it harder to fall asleep. Give yourself 30 minutes to an hour beforehand to properly relax.
- Warm bath or shower15 min
- Lower the lights10 min
- Relax: music, reading or meditation20 min
- Screens away, lights out15 min
View as table
| Part of the visit | Typical time |
|---|---|
| Warm bath or shower | about 15 minutes |
| Lower the lights | about 10 minutes |
| Relax: music, reading or meditation | about 20 minutes |
| Screens away, lights out | about 15 minutes |
Whatever you choose, keep screens out of it. The blue light from phones, laptops and tablets can interfere with your body’s natural sleep-wake rhythm, so try to put them away at least 30 minutes before bed, or use a blue light filter if that is not possible.
Adjust your daytime habits
What you do during the day shapes how well you sleep at night:
- Get natural light, daylight helps regulate your body clock, so time outside, or by a bright window, during the day helps.
- Cut caffeine early, stop consuming caffeine six to eight hours before bedtime.
- Exercise regularly, but not too late, moving your body during the day can help you fall asleep faster and sleep for longer.
Just avoid exercising too close to bedtime. It raises your body temperature and energy levels, which can make it harder to settle down.
Sleep is one of the simplest levers you have over how you feel the next day, small, consistent changes to your evening routine tend to work far better than a single big overhaul.
The Harley Street Ultrasound team
04Making it stick
None of this requires a complete overhaul of your life. Pick one change, give it a couple of weeks, and build from there, consistency matters far more than perfection.