Barry knew Alice was tired, but he was surprised that the argument between their three-year-old twin boys did not awaken her. She had not been asleep very long and occasionally changed her position, but did not wake. Alice is probably in:
A. stage 2 sleep.
B. stage 3 sleep.
C. stage 4 sleep.
D. REM sleep.
stage 4
2 answers
Right.
stage 4
1 answer