also: デーベッド · デイベット
noun
day bed
A piece of furniture that can be used as a sofa during the day and as a bed at night.
リビングにデイベッドを置いて、昼間はソファとして使っています。
I put a day bed in the living room and use it as a sofa during the day.
Loanword from English 'day bed'.