How to Stay Cool at Night &
Tips for Sleeping this Summer

If you’re tossing and turning during hot summer nights, you’re not alone. Many people struggle to stay cool at night when the temperatures rise, and this can seriously impact sleep quality. Understanding how heat can affect your sleep is the first step to making positive changes.

As bedtime approaches, your body naturally lowers its core temperature to prepare for rest — part of a process tied to your circadian rhythm. When it’s too hot, this process is disrupted, making it harder to drift off and stay asleep.

In this guide, we’ll share practical sleeping tips for summer to help you stay cool at night, sleep more soundly, and wake up feeling refreshed.

How Heat Disrupts Sleep

One of the key drivers of healthy sleep is your body’s ability to regulate temperature. In the evening, your core body temperature gradually drops, signalling to your brain that it’s time to rest. This natural cooling helps support the onset of sleep and maintain it throughout the night.

However, when the temperature in your bedroom is too high, your body struggles to make that transition. This can delay the onset of sleep and reduce time spent in the deepest, most restorative stages, particularly REM sleep and slow-wave sleep. These are crucial for everything from memory consolidation to muscle repair.

If you’ve been wondering, “why can’t I sleep when it’s hot?”, it’s likely because your body’s cooling system is being overworked. As a result, you wake up more frequently, sweat more, and get lower-quality rest.

Getting Ready for a Cooler Night’s Sleep

Before you even get into bed, there are a few smart steps you can take to set yourself up for a cooler night’s rest in hot weather:

Avoid late-night workouts: Exercise is great for your health, but doing it too close to bedtime can raise your core body temperature — the opposite of what you want before sleep. Aim to finish any intense activity at least 2–3 hours before bed.
Take a warm bath: It may sound counterintuitive, but a warm bath can actually help you cool down. As your body transitions from the warm water to a cooler environment, your internal temperature drops, promoting sleepiness.
Wear light, breathable sleepwear (or nothing at all): What you wear to bed can make a big difference. Opt for lightweight, breathable fabrics like cotton or bamboo. Some people even find sleeping in the nude helps them feel cooler and more comfortable.

These small adjustments to your bedtime routine for hot sleepers can go a long way in getting ready for a cooler night’s sleep.

Read Our Guide on the Key Ways to Get a Better Night’s Sleep

Optimising Your Bedroom for Summer Sleeping

A few simple tweaks to your sleep environment can dramatically improve comfort during hot summer nights and help lower the room temperature:

Block out the heat during the day: Keep blinds or curtains closed in your bedroom throughout the day to prevent heat from building up. Blackout blinds or thermal curtains are especially effective.
Use fans or airflow hacks: A simple bedside fan can make a huge difference. For an extra cooling boost, try placing a shallow bowl of ice, an ice pack, or a frozen water bottle in front of the fan to create a DIY air conditioner. And of course, keep the window open to improve air flow and let cooler night air circulate through the room.
Clear out clutter: A tidy, open bedroom promotes better airflow and can help your room feel cooler. Keep surfaces clear and avoid excess fabric or unnecessary decor during the warmer months.

These cool bedroom tips can make your space more comfortable and supportive of sleep, even on the hottest nights.

Learn Design Tips & Tricks for Your Box Bedroom

Choosing the Right Bedding for Summer

The bedding you sleep in can make or break your summer nights. Choosing breathable bedding for hot nights helps regulate body temperature and minimise night sweats.

Go for breathable fabrics: Natural materials like cotton, linen, bamboo, and percale are top choices for the best summer bedding. These fabrics allow better air circulation and wick moisture away from your skin, keeping you cooler and drier through the night.
Switch to a lighter duvet: Duvets with a tog rating of 4.5 or lower are ideal for summer. A lower tog traps less heat, helping your body cool naturally as you fall asleep.
Upgrade your pillows and cases: Look for moisture-wicking pillows or cooling pillowcases made from breathable fibres. These can reduce the heat buildup around your head and neck — a common source of discomfort for hot sleepers.

By making these simple changes to your bedding, you’ll create a sleep environment that’s both cooler and more inviting when temperatures rise.

Here’s How to Style Your Bed for a Luxurious Look

Picking a Mattress That Helps You Stay Cool

Your mattress plays a huge role in how cool or warm you feel at night. If you’re sleeping on a mattress that traps heat, it could be time to rethink your setup. Here are some mattress tips to get a good night’s sleep in hot weather:

Choose mattress materials wisely: Traditional memory foam mattresses tend to retain heat, making them less ideal for summer or naturally hot sleepers. Natural fill mattresses — made with materials like wool, cotton, or latex — offer better airflow and cooling.
Look for mattress cooling technology: Some modern mattresses are designed with cooling gel layers, breathable foams, or airflow-enhancing channels to help dissipate heat more effectively.
Add a cooling mattress protector: A breathable mattress protector can add an extra layer of comfort. Look for versions made with cooling fibres or temperature-regulating materials to help manage heat and humidity.

Whether you’re shopping for a new bed or looking to improve your current one, there are plenty of cooling mattress options to help you get a better night’s sleep.

Read Our Advice for Choosing Your Perfect Mattress

Sleep Better This Summer with M6 Beds

Hot summer nights don’t have to mean sleepless ones. From adjusting your routine and environment to investing in the right bedding and mattress, there are many ways to reduce overheating and sleep more soundly.

With a few small adjustments, quality sleep is possible even in summer — and M6 Beds is here to help!

Discover our range of breathable mattresses online or visit us in-store and enjoy cooler, more comfortable sleep all summer long.

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