The majority of slow-wave sleep _____ the course of a night's sleep.
A)occurs early in
B)occurs late in
C)occurs in the middle of
D)is evenly distributed throughout

Question

The majority of slow-wave sleep _____ the course of a night's sleep.
A)occurs  early in
B)occurs  late in
C)occurs  in the middle of
D)is evenly distributed throughout

Quizplus · Accepted Answer

The majority of slow-wave sleep, also known as deep sleep, occurs early in the course of a night's sleep. This phase is most prominent during the first sleep cycles.

The Majority of Slow-Wave Sleep _____ the Course of a Night's