blanket bath BrE
sponge bath AmE

She was on her way to the door to give Harald a blanket bath.

"She can give me a blanket bath any time she likes."

Hemmer sat watching as she gave him a blanket bath, washing the sweat and grime from his body.

"If a very high level of mental and physical fatigue is present," it went on, "you have the option of taking a blanket bath.

'Going to give me a blanket bath, are you?'

She went on in a reasonable voice, "But if you want her to stay bed bound please tell me and I'll nurse her exactly as you wish--blanket baths, meals in bed, pressure points--the lot."

I laughed when my mother told me of the entire postnatal fortnight spent in the maternity hospital, with bedpans and blanket baths and fierce ward sisters who wagged fingers at you if you as much as stuck a big toe over the side of the bed.