A new study published in the Journal of Medical Internet Research reveals which nutritional factors could affect your sleep.

While serotonin levels can dip and melatonin levels increase when there is less daylight (which can lead to low mood and ...

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

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

Some people claim apple cider vinegar promotes sleep or should be taken specifically at night for health effects. However, ...

The optimal amount of sleep for adults is between seven and nine hours per night, according to the National Sleep Foundation.

Spending lower proportions of time in two deep sleep stages — including REM sleep — may be linked to volume changes in ...

Napping has many fans. Among them are people who struggle to get a good night's rest. According to the National Sleep ...