寝巻き

Etymology
First attested in a text from 1548.

The term is a compound, although the exact derivation is slightly unclear.


 * May be a compound of.
 * However, the term is not attested until 1686, and the  spelling may be later ateji rather than indicative of derivation.


 * May be a compound of.
 * However, the semantics are slightly strange, as sleeping garments are not rolled. The latter portion may instead be in reference to the way that robes are wound or wrapped around the body.

Noun

 * 1)  nightwear, nightgown, pajamas

Coordinate terms

 * : a thin, light kimono, worn for sleeping or for summer.