The intrepid NYPD divers above pulled a 22-year-old woman in her pajamas from the ice-cold East River early yesterday after she jumped off the Brooklyn Bridge.

The unidentified Manhattanite was being treated for severe hypothermia last night at Bellevue Hospital after her 100-foot plunge.

She is expected to recover, said investigators, adding that she simply walked to the middle of the span and jumped at 7 a.m.

“It was extremely cold,” said Detective Michael Cocchi, 42, a diver who, with his partner, Officer Jeffrey Dowling, 37, pulled her into a police boat.