W. Sider groped in sleep by burglar

Talk about a nightmare.

A sleeping’s Hell’s Kitchen man awoke to find a stranger grabbing his genitals before the silent intruder bolted from the apartment early Thursday, cops said.

The 21-year-old resident left his door unlocked, allowing the thirtysomething assailant to slip inside the residence around 4:35 a.m., cops said. The intruder, sporting a multicolored scarf, groped the sleeping man over his clothes — and when the victim awoke, the creepy night crawler placed his fingers to his lips and motioned for silence, cops said.

The suspect then wordlessly left the apartment at W. 51st St. and Ninth Ave. and headed west, police said. Police released a video showing the suspect’s escape.

Cops described the wanted man as age 30 to 35, with black hair and glasses. In addition to the scarf, he was wearing a black coat, a gray shirt, jeans and dark shoes.