Navigating the world of sleep aids can be tricky, especially when it comes to melatonin, a natural hormone often used as a ...

Sleep-wake rhythms in normal adults usually have a periodicity of 24 hours, while 48-hour sleep-wake cycles have been ...

REM sleep goes even deeper into brain recovery, dreaming and processing memories and emotions. This is the sleep stage in which your eyes move rapidly. If you've ever caught your dog or cat in a REM ...