This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Psychiatry
Sleep pattern seen in mania is 
Select and explain. 
A. Hypersomnia, B. Insomnia, C. Decreased need for sleep, D. Somnambuslism
C: Decreased need for sleep
Answer: C: Decreased need for sleep 
Explanation: A person in mania is hyperactive so that he has decreased need for sleep.