The best sunrise alarm clocks help you wake up gently and start your day energized. See our top picks from Hatch, Philips, ...

Into that elaborate finely tuned natural system bursts the alarm clock. Sleep is often ... which creates a vicious cycle of working more and sleeping less. “Sleep has not been put out there ...

Natural morning light before waking improves alertness, reduces grogginess, and supports smoother daily transitions.

The best sunrise alarm clocks help you fight morning grogginess by soothing you to sleep and waking you gradually. They are a great investment for people who struggle to fall asleep or drag ...

The concept behind Garmin’s new Smart Alarm feature is pretty simple. To help you avoid a groggy start to your day, the watch ...

Before the industrial revolution, which brought us alarm clocks and fixed work ... With each ensuing cycle, REM time roughly doubles. Overall, REM sleep occupies about one-fifth of total rest ...

When your sleep cycles align with your wake ... waking up before your alarm isn’t because of a perfectly tuned body clock, it ...

If you’re a busy person and want to make the most of your day, sleep quality plays a huge role in how you perform while the ...

For a good night of sleep, consider getting your circadian rhythm back in sync with the sun. Here’s how to do it.

Circadian rhythms are the cycles that tell the body when to sleep, wake, and eat—the biological and psychological processes that oscillate in predictable patterns each day. This internal clock ...