(CBT-I) CBT Insomnia Certification Practice Test
(CBT-I) CBT Insomnia Certification CBT-I Sleep Physiology & Disorders
What are the two main types of sleep?
Select your answer
A
Deep sleep and shallow sleep.
B
REM and non-REM sleep
C
Alpha sleep and delta sleep.
D
Beta sleep and gamma sleep.
Need a hint?
(H)