5 tips to keep your bedroom warm this holiday season

Woman snuggled up in a duvet in bed
(Image credit: Getty)

There's nothing worse than trying to fall asleep when you're not quite warm enough. If you don't want to have your heating on all winter, there are some things you can do to help keep the warm air in. Remember – you also don't want your room to be too hot, as that's not good for sleep either. The ideal temperature for sleeping is around 16-19C. 

We consulted sleep scientist Theresa Schnorbach, who works with bed brand Emma (one of our best mattress picks), for her advice on how to keep your bedroom at the best temperature for sleep. 

"It's important to keep a stable temperature in your bedroom, as both too hot or too cold will negatively affect your sleep and increase the chances of you waking up during the night," she explains. Here are some easy ways to avoid the cold during the winter months for better rest. And if you're struggling with seasonal illnesses, check out our guide to sleeping with a cold, too.

1. Close doors and add a draught-excluder

The first, and simplest thing you can do is to close your bedroom door. This will prevent the cooler air from unused rooms and hallways from making its way into your room. Take things one step further by adding a draught-excluder at the bottom of the door to stop any cold air creeping in. 

2. Swap to a winter-weight duvet 

"Higher tog level duvets are best for winter nights and those who have difficulty keeping warm during the cold season," says Theresa. As a rule, a 7 or 9 tog is good for warm summer nights, a 10.5 is perfect for between-seasons (spring and autumn) while you'll want a 13.5 for wintry nights. 

Get the full low-down (and our recommendations) in our best duvet guide, but one option is to go for a 3-in-1 design, which includes two lower tog duvets that can be combined together, meaning you can adjust your setup so it works all year round. There are also some duvets that are naturally temperature regulating. For a quick fix, you could also add a blanket on top of your duvet to trap in more of your body heat.

Person holding a mug, in bed with a fluffy blanket

(Image credit: Amin Hasani on Unsplash)

3. Invest in blackout curtains

One of the best things you can do to improve your bedroom for sleep is to invest in some decent blackout curtains. As well as blocking out light (another big issue when it comes to disturbing sleep), they'll help insulate the room by providing a barrier against the chilly air that might make its way in from the window. They're an especially good idea if you have leaky window-frames or single-glazing.

4. Add a rug

"Homes without carpets are often noticeably colder than those with carpets," points out Theresa. If you're not in a position to re-carpet your room right now, a rug should do the trick. "A thick rug during the winter months can help to insulate your bedroom for a more comfortable sleep."

Above photo of floor, showing the edge of a bed, a fluffy rug, and a mug

(Image credit: Daria Borysenko on Unsplash)

5. Seal up cracks and crevices

Don't panic, but we've reached the DIY portion of our tips article. "Even hairline cracks in walls or doors can have a big impact on how much cold air is able to enter your bedroom," explains Theresa. "If you’re familiar with how to fix these cracks, ensure you fill them in. If the crack is deeper or more complex, or if you’re a novice when it comes to DIY, consult a professional."

Theresa Schnorbach headshot
Theresa Schnorbach

Theresa Schnorbach is a psychologist and sleep scientist, specialized in Clinical Psychology and Cognitive Neuropsychology. She has completed post-graduate training in Cognitive Behavioural Therapy for Insomnia (CBT-I) with the German Sleep Society (DGSM), endorsed by the European Research Society. She works as a sleep specialist for bed brand Emma.

Ruth Hamilton
Homes Editor, TechRadar

Ruth is currently Homes Editor on Tom's Guide's sister site TechRadar, where she reviews and writes about everything from air fryers to vacuum cleaners to coffee machines, as well as the latest smart home gadgets. Prior to making the shift to Homes, Ruth was Tom's Guide's Sleep Editor. A certified Sleep Science Coach, she has tested more mattresses than her small flat can handle and will talk at length about them to anyone who shows even a passing interest.

Read more
A woman lying on her back in bed in a jumper, hat and cozy blanket with an eye mask on, sleeping in winter
It's more difficult to sleep in winter — 7 expert tips for better rest
A woman sleeps happily with her arm raised on a comfortable white mattress
This simple bedroom hack helps you fall asleep faster and sleep through the night – here’s why
Image shows a spare room mattress placed on the floor and covered with white linens and pillows while a frosted green christmas tree sits in the corner surrounded by brightly wrapped presents
What to do and the places to avoid when putting your spare mattress on the floor
A woman with dark curly hair holds her hand to her forehead in frustration because she cannot sleep at night due to too much light coming in her bedroom window
Fall asleep fast and sleep through the night by changing these 5 things in your bedroom
Woman sleeping in bed
7 New Year’s resolutions for better sleep, from sleep experts
Eight Sleep Pod 4 temperature regulating mattress cover in light room
Can a mattress with temperature control help you sleep through the night?
Latest in Sleep
A woman with long dark hair falls asleep quickly in a comfy bed dressed with soft white linens
I'm an ex-insomniac turned sleep coach — my 3 top tips to fall asleep quickly
A person lying on their stomach on the Leesa Legend Hybrid Mattress
What’s so bad about stomach sleeping? Expert dishes the dirt on so-called ‘worst sleeping position ever’
Woman doing a yoga pose in bed against a green background
Sleep expert reveals her secret weapon for falling asleep fast — and you can do it in 15 minutes
A man places a sleep apnea CPAP machine mask on his face, a Tom's Guide Sleep Week 2025 graphic (right)
Sleep apnea could be diagnosed while you're awake, new research finds — here's what that means
A sleep week badge in the corner of a picture that depicts a woman smiling as she is getting more sleep.
Tired all the time? 7 tips to help you get enough sleep
The image shows a montage of different sleep tech products, including a Hatch Restore sunrise alarm clock, Oura Ring, Rise Sleep App, Mixx earplugs and SOMO eye mask
I test sleep tech — these are the 5 gadgets that actually help me fall asleep fast
Latest in Features
A woman with long dark hair falls asleep quickly in a comfy bed dressed with soft white linens
I'm an ex-insomniac turned sleep coach — my 3 top tips to fall asleep quickly
LG G4 OLED in living room
This is the one setting on your HDR TV most people don't know about — here's how to tweak it
Chelsea Manning speaking at the NymVPN launch event
Chelsea Manning-backed NymVPN launches in bid to win the "censorship arms race"
Samsung Q60D QLED TV on console in living room
Here's why more sports games aren't broadcast in 4K — but streaming might have the answer
Asus ROG Ally
I love my ROG Ally, and these 5 simple tweaks help me game longer
2025 Nissan Ariya Platinum+ AWD review.
I drove the Nissan Ariya EV for a week — and it's nearly the perfect crossover