The Collaborative International Dictionary of English v.0.48:

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]

WordNet (r) 3.0 (2006):

bedroom
    n 1: a room used primarily for sleeping [syn: bedroom,
         sleeping room, sleeping accommodation, chamber,
         bedchamber]