The longer you sleep, the shorter the deep sleep phase, while the REM phase is longer.īRAINEFFECT HACK: It takes you forever to fall asleep at night? Then our SLEEP SPRAY with melatonin to shorten your sleep time in the future. Sleep cycle has a duration of about 90 minutes in a healthy adult over 30 years of age. In terms of total sleep, you are in deep sleep for about a quarter of the night. This means that you are not in deep sleep once, but several times - always alternating between light sleep phases and the dreamy REM phase. They are the third and fourth stages of a total of five sleep stages.ĭuring sleep, the individual sleep phases alternate in regular cycles. In research, the term "deep sleep" is used to describe two stages of deep sleep. Phenomena such as sleepwalking or sleep talking take place exclusively in deep sleep.
However, if you wake up directly from a deep sleep, you will need comparatively much time to orientate yourself. Waking you up is particularly difficult in the deep sleep phase. You are completely introverted and hardly notice your surroundings. Your body is maximally relaxed in deep sleep. These include vegetative characteristics such as breath, pulse, and blood pressure as well as muscle tone (muscle tension) and sensory perceptions. This means that all characteristics of the waking state are particularly weak here. What happens if there is not enough deep sleep?ĭeep sleep is the sleep phase of human sleep, which is particularly deep.How much deep sleep does a person need?.Deep sleep duration in hours: How long does deep sleep last?.
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