What's the Best Bedroom Temperature for Sleep?
For most adults, the commonly cited range is about 60 to 67 degrees Fahrenheit (roughly 16 to 19 Celsius) — cooler than people expect. Your body naturally drops its core temperature a little to fall asleep, and a cool room supports that process, while a warm room works against it. This is a big reason people sleep poorly in summer or under too many blankets.
The exact number is personal, so treat that range as a starting point and adjust. If you run hot, lean cooler and use breathable bedding; if you run cold, a cool room with a warm blanket often beats a warm room. The principle holds either way: a slightly cool sleeping environment helps you fall asleep and stay asleep. See more in building a wind-down routine.
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