Ace the 2025 Registered Sleep Technologist Exam – Sleep Your Way to Success!

Question: 1 / 400

What percentage of sleep does stage N2 typically account for in a normal sleep cycle?

10-15%

20-25%

Stage N2 of sleep is a significant portion of the sleep cycle, typically accounting for approximately 20-25% of a normal sleep period. This stage is characterized by a moderate depth of sleep and features such as sleep spindles and K-complexes. It serves as a bridge between lighter and deeper stages of sleep, and during this phase, the body continues to relax, becoming less responsive to external stimuli.

Understanding the percentage of sleep stages is important in sleep studies, as it helps in assessing sleep quality and diagnosing sleep disorders. While other stages of sleep are essential, N2 plays a key role in memory consolidation and overall sleep maintenance, making its proportion noteworthy in normal sleep architecture.

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30-35%

40-50%

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