sofa bed

English Thesaurus

1. a sofa that can be converted into a bed (noun.artifact)

hypernym	:	couch, lounge, sofa,
definition	:	an upholstered seat for more than one person (noun.artifact)

hyponym	:	davenport,
definition	:	a large sofa usually convertible into a bed (noun.artifact)

hyponym	:	day bed, studio couch,
definition	:	convertible consisting of an upholstered couch that can be converted into a double bed (noun.artifact)