Don’t sleep on an early bedtime. The average American goes to bed at 11.39 p.m., but one expert says we should be preparing for shut eye hours earlier than that. Nutritionist Kate Booker says ...

So going to bed later than ideal can change the amount of time in each sleep stage, and our sense of how refreshing our sleep is.” So, while the time you choose to go to bed may not affect your ...

When is the best time to take nap? A sleep doctor reveals the optimal time of day to take a nap in order to feel rested and ...

In TODAY.com's Expert Tip of the Day, a sleep scientist shares tips to break your snooze-button habit and get more quality ...

The best sleep tracker rings are unobtrusive but powerful, offering insight into your nights to improve your sleep quality. See our picks from Oura, Ultrahuman and more.

Prepare yourself for the time change and sign up for our one-week newsletter series, Life Kit's Guide to Better Sleep. You'll get science-backed strategies to help you get your sleep back on track.

Secondary hypersomnia can be caused by sleep disorders, such as restless leg syndrome and insomnia, which can play a big part in the symptoms, as they prevent deep, restorative sleep, making you ...

Inadequate sleep can increase the risk of premature death by up to 29%, a new study from Vanderbilt University found. A New York doc shares seven healthy sleep habits.

Daylight Savings and time changes disrupt the body’s circadian rhythm, the 24-hour cycle regulating sleep, mood, appetite and other key functions.

Sleep problems can multiply if you're traveling long distances across multiple time zones, resulting in jet lag. Jet lag isn't just a made-up term frequent flyers use to describe being tired. It's ...