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Sleep can be divided into which two general phases?
ALight and dreamless
BREM and non-REM
CDeep and hypnotic
DEarly and delayed
Answer & Solution
Correct answer: B. REM and non-REM
1. The broadest division of sleep comes first.
2. Sleep can be divided into two different general phases.
3. Those phases are REM sleep and non-REM sleep, abbreviated NREM.
4. NREM is then subdivided further into numbered stages.
_Source: OpenStax Psychology 2e (CC BY 4.0), Ch 4 'States of Consciousness', sections 4.1-4.6_
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