Sleep paralysis could be a feeling of being acutely aware however unable to address. It happens once someone passes between stages of wakefulness and sleep. Some individuals may additionally feel pressure or a way of choking. Sleep paralysis could accompany alternative sleep disorders like hypersomnia. Hypersomnia is an overwhelming got to sleep caused by a drag with the brain's ability to control sleep. Sleep paralysis typically happens at one amongst twofold. If it happens whereas one starts falling asleep, it is referred to as soporific or predormital sleep paralysis. If it happens as you are wakening, it is referred to as hypnopompic or postdormital sleep paralysis. As we go to sleep, our body slowly relaxes. However, if you stay or become aware whereas falling asleep, you'll notice that you simply cannot move or speak. During sleep, your body alternates between REM (rapid eye movement) and NREM (non-rapid eye movement) sleep. One cycle of REM and non-rapid eye movement sleep lasts regarding ninety minutes. Non-rapid eye movement sleep happens initially and takes up to 75% of your overall sleep time. Throughout non-rapid eye movement sleep, body relaxes and restores itself. At the start of NREM, sleep shifts to REM. Eyes move quickly and dreams occur, however the remainder of our body remains terribly relaxed. Muscles are "turned off" throughout REM sleep. If we become aware before the REM cycle has finished, we will notice that we simply cannot move or speak.