asked 92.7k views
16 votes
What stage is deep sleep, when it is difficult to wake you up?

A. REM

B. Stage 1

C. Stage 2

D. Stage 4

2 Answers

8 votes

Answer:

A

Step-by-step explanation:

REM

answered
User Taeho Kim
by
8.6k points
4 votes

Answer:

stage 4

Step-by-step explanation:

answered
User Miroslav Hrivik
by
7.9k points
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