6. Madonna
In a 2015 interview with Rolling Stone, Madonna reported that she had been living with insomnia for decades. “Actually, one of my assistants just found one of my journals from 1991. I’m complaining the same way about not being able to sleep in 1991 as I am right now. Like, some things never change … [The insomnia started] unconsciously, probably when my mother died. And sleep’s never been an easy thing for me … If I can get six hours, I can get through the day. But because I want to have a career and also be an attentive mother, I tend to take a lot of breaks and deal with my kids, and then go back to work. In the recording studio, I never finish before 2 a.m., and then I have to get up at 7 a.m. for my kids. So there’s a lot of sleep deprivation … You start to go crazy if you don’t sleep. But I definitely don’t understand people who sleep 12 hours a day. I see that as the supreme indulgence, people sleeping until noon. How dare they? I never did that when I was a teenager…” —Rolling Stone, March 2015. Some of her sleep problems may be self-inflicted, though — Madonna said she regularly stays in the recording studio until 2 a.m. but needs to get up at 7 a.m. for her children. She might find it helpful to allot an appropriate amount of time for sleep!