1. Settle down to sleep or rest, especially in temporary or makeshift accommodations
   "We bunked down at midnight";
   - bed down

Derived forms: bunks down, bunked down, bunking down

Type of: bed, go to bed, go to sleep, hit the hay [informal], hit the sack [informal], kip down [informal], retire, sack out [N. Amer, informal], turn in [informal]