(Cover) - EN Showbiz - Mariah Carey enjoys long sleeps each night, while her husband Nick Cannon only needs two hours.

The TV host-and-radio DJ is married to singer Mariah Carey, and their lives are hectic. Nick admits he would like to get more rest, but he finds it impossible to find the time to put his head on a pillow.

I dont get a lot of sleep, he explained. Four hours Im happy with, but I usually get two.

Mariah is less content with losing out on her sleep. She always makes the time for adequate shuteye, with Nick revealing she has an interesting reason for why she takes to her bed so much.

My wife sleeps a lot. Shes a singer, so she always has to rest her voice, he explained.

Fellow singer Jennifer Lopez is just as keen on sleep as Mariah. She has two-year-old twins Max and Emme with her husband Marc Anthony, but still ensures she gets enough rest daily.

Sleep is my weapon, she told Us Magazine. I try to get eight hours a night. (C) Cover Media