From WordNet (r) 2.0 (August 2003) [wn]:
bedroom
n : a room used primarily for sleeping [syn: sleeping room,
chamber, bedchamber]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Bedroom \Bed"room\, n.
1. A room or apartment intended or used for a bed; a lodging
room.
[1913 Webster]
2. Room in a bed.
Note: [In this sense preferably bed room.]
[1913 Webster]
Then by your side no bed room me deny. --Shak.
[1913 Webster]