Simple Definition of sofa bed
: a sofa that can be folded out to form a bed
Full Definition of sofa bed
: a sofa that can be made to serve as a bed by lowering its hinged upholstered back to horizontal position or by pulling out a concealed mattress
First Known Use of sofa bed
Seen and Heard
What made you want to look up sofa bed? Please tell us where you read or heard it (including the quote, if possible).