Cool Down to Power Up

Your core body temperature has a direct impact on how well you sleep. When it drops by just 1-2°F, your body shifts into deeper recovery mode. People who track this tend to feel less groggy in the morning.

Here's what to try tonight: (1/4)

Set your bedroom to 65-68°F. Take a warm shower about 90 minutes before bed. It sounds backwards, but the warm shower actually helps your body cool down afterward. Each morning, note how long it took to fall asleep and rate your energy from 1 to 10. Do this for a week. A wearable or a simple journal works fine. You'll start to see your personal temperature sweet spot. (2/4)

A couple of extra notes. If you're working late on screens, your body tends to run hot. Cool your wrists and neck before bed since those areas release heat the fastest. And try not to do intense workouts within two hours of sleep.

Most people fall asleep 5-15 minutes faster and wake up feeling noticeably sharper. Energy scores tend to improve within a week. (3/4)