Fitbit is testing a “Personalized Sleep Schedule” feature. After you answer surveys throughout the day, the feature will ...

I wasn’t sleeping well, so I took Thorne’s Sleep Test to uncover the cause. Here's what I learned about my out-of-whack ...

More people are becoming obsessed with sleep trackers, causing insomnia and making sleep worse, experts say. Here’s how to ...

Teenagers who slept less than 7.7 hours in a sleep lab were observed to be almost three times more likely to have elevated blood pressure than well-rested peers.

“But until trackers actually measure brain waves like we do in a sleep lab, it’s just an estimate,” she said. “I believe being obsessed with sleep trackers contributes to a lot of sleep an ...

"I've seen some real horror stories," she said. "One 27-year-old woman said her tracker showed she wasn't sleeping. An overnight lab study showed that she was, but she would still not believe her ...