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Warm or cool bedroom: which is better for sleep?

Does a warm, toasty room help you sleep? This Short puts that next to what many sleep experts suggest: a cool room, around 65°F (about 18°C), adjusted to what feels comfortable for you, and a simple tip about cozy, light layers.

YouTube Short20 secondsPublished November 7, 2026By the SleepBetter.ai team

What it says

Myth: a warm, toasty room helps you sleep. Fact: many sleep experts suggest a cool room, around 65°F (about 18°C), adjusted to what feels comfortable for you. The Sleep Foundation cites about 65°F as a common starting point, and the Cleveland Clinic describes a similar window of roughly 60 to 67°F (15 to 19°C). A 2012 review of how temperature affects sleep found that the thermal environment can change how easily people fall asleep and stay asleep. The Short’s tip is to try a slightly cooler room with cozy, light layers, so you stay comfortable without heating the whole room.

Try it tonight

Turn the thermostat down a little, or crack a window if it is safe and quiet outside, and use a light blanket you can kick off. A warm shower an hour or two before bed pairs well with a cool room; our warm-shower Short explains why the cooling afterwards matters. To stay cosy once you are in bed, the 8-hour snowy cabin fireplace gives you the feeling of a fire without heating the air.

This is general information, not medical advice. If you have trouble regulating temperature, or night sweats keep waking you, talk to a doctor.

About these Shorts

Our myth vs fact Shorts put one common sleep belief next to what the evidence says, with the sources listed below. There is no voice in this one: the myth, the fact and the tip appear as text over real footage of northern lights over pines. For more, see can you catch up on sleep over the weekend?, is loud snoring a sign of deep sleep? and does your brain switch off when you sleep?

Warm bedding, cool air

Feeling warm under the covers is not the same as sleeping in a warm room. Light layers let you stay comfortable while the room itself stays on the cool side, which is the combination many people find easiest.

Transcript

There is no narration. The on-screen text, in order:

Warm or cool bedroom: which is better for sleep?
Myth: “A warm, toasty room helps you sleep.”
Fact: Many sleep experts suggest a cool room… around 65°F (about 18°C), adjusted to what feels comfortable for you.
Tip: Try a slightly cooler room with cozy, light layers.

How this was made

Footage: real stock video of northern lights over pines (Mixkit, Mixkit Free License), cropped and graded by SleepBetter. Audio: calm procedural sound and soft chimes generated by SleepBetter’s own sound engine. Text overlay by SleepBetter. No voice and no AI-generated picture.

Sleep videos and guided relaxation are for general wellness, not medical advice. If poor sleep is affecting your days, talk to a doctor or a sleep specialist.