‘So What’ singer Pink`s sleepless nights

London: Singer Pink is being kept awake at night by her baby daughter Willow Sage.

The `So What` hitmaker and her hubby Carey Hart welcomed their daughter Willow Sage into the world earlier this month, reports femalefirst.co.uk.

"Yeah!!!!!!!! up all night!!!! reliving my past . I`ve just replaced techno music with ocean sounds - glow sticks with night lights," Pink posted on her Twitter page.

"Sleep is overrated anyway," she added.