Rhianna had been asleep for 30 minutes when she was awakened by her roommate screaming at her to pick up the phone.Rhianna was extremely confused,so she grabbed her shoe and said "Hello?" Before she was awakened,Rhianna was most likely in ________ sleep.
A) REM
B) stage 1
C) stage 2
D) slow-wave

Question

Quizplus · Accepted Answer

Before being awakened, Rhianna was most likely in slow-wave sleep, which occurs approximately 30 minutes after falling asleep and is characterized by deep sleep and disorientation upon waking.

Rhianna Had Been Asleep for 30 Minutes When She Was