Sleep is a resting state for the brain and body that occurs at regular intervals, and getting enough sleep is essential for maintaining good health.When a person is asleep, their core body temperature ...

The most common reason a person may fall asleep randomly is not getting enough sleep. Many people need 7–9 hours of sleep each day, and when an individual does not get enough, their body may ...

Some sleep-restriction methods involve shortening a person’s time in bed to the average amount that they actually sleep per night. Other methods delay a person’s bedtime.