Noun
lack of sleep (uncountable)
The having not slept enough at any given time without any specification of cause. (This entry is a translation hub.)
If you can't sleep, then get up and do something instead of lying there worrying. It's the worry that gets you, not the lack of sleep. Dale Carnegie
I would say a lack of sleep is a cause for feeling not so beautiful. On those days, I try to drink lots of water and put on the biggest sunglasses I can find. Kourtney Kardashian
Your favorite volhv showed up half an hour ago, complaining about his lack of sleep and stupid gods. He says he brought his Batman belt. Ilona Andrews
You can manage 50 people through the strength of your personality and lack of sleep. You can touch them all in a week and make sure they're all pointed in the right direction. Mark Pincus
People dramatically underestimate how much sleep is linked to all the diseases killing us. We know a lack of sleep is linked to numerous forms of cancer - bowel, prostate, breast cancer. Matthew Walker
Lack of sleep makes me less productive. I need a good seven or eight hours a night. Sandra Lee