Aloe Steph

Hot nights in the UK can make sleep feel impossible. Houses are built to keep heat in, not out, and most of us do not have air conditioning. This guide will help you stay cool, protect your sleep, and wake up feeling more human during the next heatwave.

Prepare Your Bedroom Before Bed

A cool bedroom starts long before you switch off the light. Small changes during the day can make a big difference at night.

• Keep blinds and curtains closed on sunny sides of the house so you block out direct sunlight and reduce heat build up.
• Open windows in the cooler parts of the day such as early morning and late evening to let cooler air flow through.
• Use light coloured bedding made from cotton or linen as these fabrics are breathable and allow better air circulation.
• Remove extra cushions, throws and heavy duvets so your bed feels lighter and cooler.

If your bedroom still feels hot by evening, consider sleeping in the coolest room in your home. This is often on the lower floor or a north facing room that gets less direct sun.

Choose the Right Bedding and Sleepwear

Your bedding and sleepwear can either trap heat or help you keep cool. Focus on breathable, light fabrics and avoid anything that clings.

• Swap your winter duvet for a low tog summer duvet or a simple cotton sheet.
• Use cotton pillowcases as they absorb sweat better than synthetic fibres.
• Wear loose fitting cotton or bamboo pyjamas or a breathable vest and shorts.
• Avoid satin or polyester nightwear since these fabrics tend to trap heat and moisture.

If your mattress retains heat, add a breathable cotton mattress protector. This creates a cooler barrier between you and the mattress surface.

Use Fans and Simple Cooling Tricks

Not every UK home has air conditioning but you can still create a cooling effect with simple tricks. Fans become your best friend during a heatwave.

• Position a fan to face you but slightly off direct so it does not dry your eyes or throat.
• Place a bowl of ice or a frozen water bottle in front of the fan to create a cooler airflow.
• Use a portable fan near the window in the evening to help draw cooler outdoor air into the room.
• Consider a cooling pillow or gel pad if you often feel hot around your head and neck.

You can also use a damp flannel on pulse points such as wrists, neck and behind the knees. Cooling these areas can help lower your overall temperature for a short time.

Cool Your Body Safely Before Bed

It may be tempting to jump into a freezing cold shower just before bed but this can shock the body. A more gentle approach works better for sleep.

• Take a lukewarm shower in the evening as this helps reduce core body temperature without triggering a strong cold response.
• Pat skin dry rather than rubbing, then apply a light moisturiser to avoid stickiness.
• Drink cool water but avoid large amounts right before bed so you do not wake often to use the bathroom.
• Avoid heavy, hot meals late at night as digestion raises body temperature.

You can also dip your feet in cool water for a few minutes. Feet have many blood vessels close to the surface and cooling them gently can help you feel more comfortable.

Adjust Your Sleep Routine for Heatwaves

When nights stay hot, your usual sleep routine might stop working. A few tweaks can help you fall asleep more easily.

• Go to bed slightly later if the temperature drops later in the evening and wake a little earlier to match the cooler hours.
• Keep a consistent wind down routine such as reading, stretching or listening to calm music so your brain still receives clear sleep signals.
• Avoid intense exercise close to bedtime as it raises body temperature and can make you feel hot and restless.
• Limit phone scrolling in bed as the light and stimulation can make it harder to relax, especially when you already feel uncomfortable.

If you cannot sleep, get up for a short time and sit in a dim, cool area. Read or do something low effort until you feel sleepy again, then return to bed.

Manage Hydration and Caffeine

Hydration plays a key role in how you feel during a heatwave. Being even slightly dehydrated can make you feel hotter and more irritable.

• Sip water regularly through the day rather than drinking large amounts at once.
• Add hydrating foods such as cucumber, watermelon and oranges to meals and snacks.
• Reduce caffeine in the afternoon and evening since it can affect sleep quality and may increase heart rate.
• Be mindful of alcohol as it can dehydrate you and disrupt your sleep cycle, especially in hot weather.

Keep a glass of water by your bed for small sips if you wake in the night feeling dry. Avoid sugary drinks as these can make you feel more thirsty later.

Make Your Home Heatwave Ready

UK homes often hold on to daytime heat. A few simple changes can make bedtime more comfortable during a hot spell.

• Use blackout curtains where possible as they help block sunlight and reduce indoor heat gain.
• Turn off unused electronics in the evening as they give off small amounts of heat.
• Cook earlier in the day or use smaller appliances such as air fryers or slow cookers to reduce heat from the oven.
• Avoid using tumble dryers in the late evening as they release warm air into the home.

If your home is a top floor flat or south facing, consider portable solutions such as reflective window film or temporary shades to block direct sun during peak heat.

Listen to Your Body and Rest

Sleep during hot weather might not be perfect and that is normal. The goal is to stay as cool and rested as possible until temperatures drop again.

On very hot days, allow small adjustments to your routine. You may need a short nap or a quieter evening. Aim for rest and recovery rather than perfect productivity.

If you feel dizzy, nauseous or extremely tired, you may be overheating. Move to a cooler space, drink water and rest. If symptoms do not pass, seek medical advice.

Heatwaves in the UK will likely become more common so building a simple “hot weather sleep plan” now will help you cope better in future summers.

What one change from this guide do you think would make the biggest difference to your own sleep during a UK heatwave and why?