happens when people who get tired during the day and then they take a nap in the early afternoon and as a result they cannot go to sleep at bedtime. People suffering from discomfort insomnia often complain of stomach upsets, such as ulcers, toothaches, or arthritis. This causes them to wake up during the night, which gives them discomfort. In and out insomnia occurs when patients feel that they didn't sleep at all during the night when they really did, but only stayed in the first stages of light sleep and woke up frequently througho!
             Dr. Allan Rechtschaffen states in Linde and Savary's The Sleep Book, (1974) "Insomniacs spend less time in REM sleep than normal sleepers" (p. 110). REM sleep, or rapid eye movement sleep is the final stage of sleep reached in a normal sleep cycle. To better understand this cycle of sleep scientists have used an electroencephalogram to measure brain waves during sleep. A normal sleep cycle consists of five distinct stages with paradoxical, or REM stage being the final stage. REM sleep is what is commonly known as deep sleep.
             There are many other causes of Insomnia such as the many environmental causes said by Ernest Hartmann's The Sleeping Pill (1978). Hartmann states, "any loud noise or sounds that can irritate or aggravate can disrupt a persons sleep" (p. 116). When trying to sleep, the littlest things can bother someone's sleep whether hearing the bathroom water faucet dripping or even the heater coming on during the night. All these things can keep a person up all night when they are suffering from insomnia. He also claims, "there is a condition some
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