How do you spell Bunked

Available Definitions:
1)  n. - A wooden case or box, which serves for a seat in the daytime and for a bed at night.
2)  n. - One of a series of berths or bed places in tiers.
3)  n. - A piece of wood placed on a lumberman's sled to sustain the end of heavy timbers.
4)  v. i. - To go to bed in a bunk; -- sometimes with in.