REM stages and one REM stage. Ideally, you repeatedly cycle through each stage. Learn how long each stage lasts.

Sleep deprivation during pregnancy poses significant risks to both mother and baby, impacting fetal development and maternal ...

Deep sleep is the restorative stage of sleep. During this stage the body undergoes tissue repair, the immune system is ...

People on TikTok and other social media say they feel more alert when they have had fewer hours of sleep—but sleep scientists ...

If you give your body enough time to find the beat, you’ll notice differences not only in how you sleep but also how you feel ...

Advancements in neuroimaging have allowed scientists to observe what happens in the brain during different stages of sleep. One consistent finding is that people with higher levels of sleep ...

SUDEP often happens when the person is asleep. If you have seizures during sleep, having a seizure alarm that alerts someone who can help if you have a seizure in bed might be helpful. If you live ...

Is sleep tracking actually useful in daily life, or is it just data overload distracting you from what matters? After ...

In the quiz below, test your knowledge of the science of sleeping, as well as the dreams that unfold during sleep. Remember ...