Japanese bed (5)
I believe the answer is:
futon
'japanese bed' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for futon that I've seen before include "Kind of Japanese chair-bed" , "Foldable mattress" , "Padded mattress for sleeping on the floor" , "Japanese sofa bed" , "'Japanese mattress, can be folded (5)'" .)