Question

People with _____ of circadian rhythm sleep-wake disorder have sleep that tends to be fragmented into at least three periods per 24 hours; they may have insomnia during the night but be very sleepy during periods of the day.

Answer 1

The correct answer is - irregular sleep-wake type.

Explanation:

Circadian rhythm is a biological clock that keeps on moving in the background of the brain. It is moving in between the sleepiness and tiredness cycles in 24 hour period of time.

The sleep-wake cycle is another name for the circadian rhythm, The irregular sleep-wake type of circadian rhythm that breaks in a minimum of 3 periods of 24 hours. Such type of circadian rhythm may cause insomnia in the nights but the day times would be sleepy.

Thus, the correct answer is - irregular sleep-wake type.