The “Magic” Number: 60°F to 65°F
For most healthy adults, the sweet spot for sleep lies between 60°F and 65°F (15.6°C to 18.3°C). Why does this work? Your body follows a circadian rhythm that naturally lowers your core temperature as evening approaches.1 This “cooling down” process is a signal to your brain that it’s time to sleep.2 Sleep Temperatures Across Life…