Sleep Cycles: The Five Stages Of Sleep

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Your roommate comes back to the dorm at all hours of the night, disturbs your sleep, messes up your typical sleep cycle and your ability to learn and your health. Your sleep cycle being messed up can cause harm to your body and mental process. A typical night's sleep cycle is four to ten hours.Typical sleep cycles include five stages of sleep. The first stage of sleep is W or wakefulness when someone is awake. The second stage is N1 or light sleep, this is the part of sleep that has theta waves. The third stage of sleep is N2 or sleep spindles, this is the stage where people drift further into sleep. The fourth stage of sleep is N3 or deep non-rapid eye movement, this stage is the deepest stage of sleep. The fifth stage of sleep is R or rapid
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