noun
bunk beds; double bunk
Refers to a bed frame with two stacked sleeping surfaces. Common in homes, dormitories, and hostels.
子供部屋に二段ベッドを置いた。
We put bunk beds in the children's room.
寮の部屋は二段ベッドで、上が私の寝る場
The dorm room has bunk beds, and the top bunk is where I sleep.