Sleepwear
ahd-5
noun.
Clothes, such as pajamas or a nightgown, worn in bed.
Wiktionary, Creative Commons Attribution/Share-Alike License
noun.
garments
designed to be worn in
bed
;
nightclothes
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
garments designed to be worn in bed