In late life, wakefulness increases at the expense of both NREM and REM sleep.

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Multiple Choice

In late life, wakefulness increases at the expense of both NREM and REM sleep.

In late life, sleep becomes lighter and more fragmented, with more awakenings during the night. This leads to more wakefulness, which in turn reduces the time spent in both NREM sleep (including the deep, restorative portion) and REM sleep. As people age, slow-wave sleep and REM sleep tend to decrease, contributing to shorter, more interrupted total sleep time. Therefore, wakefulness is Increased. The idea that wakefulness would be decreased, fluctuating, or absent does not fit the typical aging sleep pattern.

In late life, sleep becomes lighter and more fragmented, with more awakenings during the night. This leads to more wakefulness, which in turn reduces the time spent in both NREM sleep (including the deep, restorative portion) and REM sleep. As people age, slow-wave sleep and REM sleep tend to decrease, contributing to shorter, more interrupted total sleep time. Therefore, wakefulness is Increased. The idea that wakefulness would be decreased, fluctuating, or absent does not fit the typical aging sleep pattern.

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