Adults should regularly sleep 7 hours or more per night. Some, particularly young people and people with chronic diseases, need even more - 9 hours of sleep per night. Only a small number of people need to sleep less than 6 hours a day.
Even a short daytime sleep is beneficial: it refreshes, relieves general drowsiness and restores strength. In addition, the benefit of daytime sleep is to neutralize the stress hormone (cortisol) and restore sleep patterns.
Both a short five-minute nap and a full sleep help get rid of fatigue, as well as recharge your batteries for at least 2-3 hours.
Moreover, resting during the day, you can improve mental performance in several ways at once.
However, there is extensive research linking frequent daytime naps to a number of health conditions, including hypertension, microvascular disease, and diabetes, just to name a few.
On average, scientists recommend sleeping no more than half an hour. In such a short time, the body will not have time to plunge into a deep phase of sleep, from which it is more difficult to wake up. If the daytime sleep lasts an hour or two, you can, on the contrary, get up tired and overwhelmed.
After sleeping for an hour or more, a person feels confused and overwhelmed. In addition, prolonged daytime sleep can interfere with nighttime rest. This manifests itself in the form of heavy falling asleep and insomnia. It is also not recommended to sleep after 16:00.