The Kardashians bedtime fashion secrets revealed. Have any of you Kylie Jenner fans ever wonder what Kylie Jenner wears to bed every night?

Fashion conscious, Kylie Jenner and her sisters, Kim Kardashian and Khloe Kardashian have just teamed up with American fashion house, Calvin Klein and released saucy photos and an accompanying video explaining what each of the beauties like to wear to bed at night.

The sexy video shows the girls parading around in their Calvin Klein undies and boy do they look hot. Kylie, who is one of the most photographed women in the world today reveals that she lives and sleeps in her Calvin Klein gear and she even wears her Calvin Klein underwear to bed at night.

20 year old Kylie appears alongside her older sister, Kim Kardashian West who explains that she too also wears her CK pants and bra top in bed. This is the second time this year the Kardashians girls have teamed up with fashion brand, Calvin Klein. The Kardashians seem to be big fans of the US fashion brand with their collection including jeans, jackets and lots of underwear.