The two-sleep night once fit dark, quiet evenings, but bright lights and fixed schedules trained bodies to sleep in one block now.

Less than half of people who've survived a stroke will go on to have a healthy, normal sleep pattern, new research shows. Normal sleep is defined as six to eight hours of shuteye nightly. However, a ...

We may need to redefine what a good night’s sleep really means. Adults who maintain an optimal sleep schedule with regular bedtime and wake times have significantly lower mortality compared to those ...