crash pad

Short definition from Wiktionary

Noun

1. 1
   Any place used for temporary lodging, especially without payment or permission.
2. 2
   Any place used for temporary lodging, especially without payment or permission: A place of temporary lodging for airline flight crews.
3. 3
   A protective foam pad placed on the ground, used as protection in case of falling from the wall.
4. 4
   A room where one can recover after a bad trip.