Silky Nightshirts

nightshirts
A long, loose shirt worn to bed
A nightshirt is a garment intended for sleeping in. It is somewhat longer than most regular shirts, reaching at least down to the thighs, but usually shorter than a dress or robe, leaving some of the legs uncovered.
(nightshirt) nightclothes worn by men

silky
Of or resembling silk, esp. in being soft, fine, and lustrous
satiny: having a smooth, gleaming surface reflecting light; "glossy auburn hair"; "satiny gardenia petals"; "sleek black fur"; "silken eyelashes"; "silky skin"; "a silklike fabric"; "slick seals and otters"
(silkily) in a silky manner; "the young wheat shone silkily"; "`Darling,' she said silkily"
(silkiness) the smooth feel of silk fabric
(of a person or their speech or manner) Suave and smooth, esp. in a way intended to be persuasive