![]() Your body temperature, brain waves, heart rate, and breathing reach their lowest levels. It’s hard to wake up, even if outside stimuli are popping off around you. Stages 3 and 4 (deep sleep)ĭeep sleep occurs in these stages and becomes shorter with each sleep cycle. Brain waves decrease and display sudden short bursts of activity. It’s when you’re in a light to medium sleep.Īs your body embraces slumber, your heart rate and breathing slow down, your muscles relax, and your body temperature decreases. Stage 2Īround 50 percent of your repeated sleep cycles will be spent in this stage. Stage 1 doesn’t last very long - around 5 to 15 minutes. Have you ever had the sudden sensation of falling as you start to doze? This is your body reacting to rest mode. This is the transition from being conscious to unconscious. Sleep stages are either REM or non-REM sleep. It’s called REM (short for “rapid eye movement”) because your eyes move around quickly while staying closed. It’s also an integral part of your sleep pattern. REM is more than a damn fine dad-rock band. Every 90 minutes or so, your mind cycles through five stages of sleep. (2016).Even if you look like an inanimate object when you’re asleep, a lot is happening when you drift off to dreamland. National Institute of Neurological Disorders and Stroke.The importance of sleep and understanding sleep stages. Sleep disorders and sleep deprivation: An unmet public health problem. Institute of Medicine Committee on Sleep Medicine and Research. ![]()
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