Rhianna had been asleep for 45 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

Rhianna was most likely in slow-wave sleep, which is the deepest stage of non-REM sleep. This stage of sleep is characterized by its difficulty to awaken someone, and upon awakening, individuals are often extremely confused or disoriented, as demonstrated by Rhianna's confusion and her reaching for a shoe instead of the phone.

Rhianna Had Been Asleep for 45 Minutes When She Was