Most sleep cycles take about 90 minutes to complete, too, which is why you may feel especially bleary when you wake up ...

A multiple sleep latency test (MSLT) is an objective way to measure sleep quality. It helps diagnose narcolepsy and insomnia.

Nap o’clock” has been pinpointed at 1:42 p.m., according to new research. The survey of 2,000 general population Americans revealed just before a quarter to two is respondents’ ideal time ...

The display automatically adjusts its brightness based on your room’s lighting, so it won’t blast your eyes if you check the ...

We asked experts what parents should know about how sleep impacts infant development and how to establish routines.

Childs, the deputy director of the sleep and circadian rhythms programme in the faculty for medicine, nursing and health ...

"There are several different methods you can try, a common one being the 4-7-8 technique ," she suggests. "For this, you ...

We ask an expert why REM sleep is so important, what happens if we don't get enough of it and how to get more REM sleep.

Most people wake up at night because it’s part of our natural sleep cycle. At the end of every sleep cycle, which is roughly ...

REM sleep goes even deeper into brain recovery, dreaming and processing memories and emotions. This is the sleep stage in ...

Delayed REM sleep may be linked to a higher risk of Alzheimer’s disease, new research found. Here's how to build a healthy ...