How much deep sleep do you need?

Deep sleep is an important stage of the sleep cycle. It is he who first of all tries to compensate the body with lack of sleep. Sleep is a heterogeneous state. It is divided into slow and fast phases, which alternate several times a night. In a state of sassm.org, a person's eyeballs move, breathing and heartbeat quicken. But in the slow state, he is more like sleeping: he lies calmly on the bed, breathes measuredly and deeply, and his heart beats more slowly. In this phase we spend 2/3 of the night.