Which stage of sleep accounts for the greatest proportion of total sleep time in adults?

Question

Quizplus · Accepted Answer

Stage 2 sleep accounts for about 45-55% of total sleep time in adults, making it the stage that accounts for the greatest proportion of total sleep time. Stage 1 sleep accounts for about 5% of total sleep time, while stages 3 and 4 (also known as slow wave or delta sleep) together account for only about 15-20% of total sleep time. REM sleep accounts for about 20-25% of total sleep time.

Which Stage of Sleep Accounts for the Greatest Proportion of Total