A couch that can be used as a sofa by day and a bed by night(noun)
Long chair for reclining(noun)
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Use "daybed" in a sentence
"I am insisting on a bed in that room for me, and since Pumpkinpie's daybed is working so well, I am looking at a daybed of simple silver steel tubes, something I can see in a boy's room or a girl's room, really, whereas most daybeds lean towards the feminine."
"A. has her own room, bathroom and queen bed how will she ever go back to her "daybed"--actually converted crib?"
"One of my favorite porch pieces is my antique daybed, which is ideal for a summer nap, a great place to read the paper and lots of fun to redo on a regular basis."