The 31-year-old usually takes great care of her skin but admits she sometimes forgets to remove all her cosmetics before going to bed.
"I fell asleep in my make-up two days ago. My skin was perfect and then I fell asleep with all my make-up on. I woke the next morning and was like, 'Why did I do that?' I hate myself every time I do it," contactmusic.com quoted Kardashian as saying.