#bed  a piece of furniture that provides a place to sleep; "he sat on the edge of the bed"; "the room had only a bed and chair"
  supertype:  article_of_furniture__furniture__piece_of_furniture  furnishings that make a room or other area ready for occupancy; "they had too much furniture for the small apartment"; "there was only one piece of furniture in the room"
  part:  bedstead  mattress
  subtype:  built_in_bed__berth__bunk  a bed on a ship or train; usually in tiers
     subtype:  lower_berth__lowerberth__lower  the lower of two berths
     subtype:  upper_berth__upperberth__upper  the higher of two berths
  subtype:  built-in_bed  a bed that is built in and fixed to a wall
  subtype:  bunk  a rough bed (as at a campsite)
  subtype:  bunk_bed__bunk  beds built one above the other
  subtype:  camp_bed__cot  a small bed that folds up for storage or transport
  subtype:  couch  a narrow bed on which a patient lies during psychiatric or psychoanalytic treatment
  subtype:  deathbed.bed  the bed on which a person dies
  subtype:  double_bed  a bed wide enough to accommodate two sleepers
  subtype:  four-poster  a bed with posts at the four corners that can be used to support a canopy or curtains
  subtype:  hammock__sack  a hanging bed of canvas or rope netting (usually suspended between two trees); swing easily
  subtype:  marriage_bed  the bed shared by a newly wed couple
  subtype:  Murphy_bed  a bed that can be folded or swung into a cabinet when not being used
  subtype:  plank-bed__plankbed  a bed of boards (without a mattress)
  subtype:  platform_bed  a bed without springs
  subtype:  sickbed  the bed on which a sick person lies
  subtype:  single_bed  a bed for one occupant
     subtype:  hospital_bed  a single bed with a frame in three sections so the head or middle or foot can be raised as required
  subtype:  sleigh_bed  a bed with solid headboard and footboard that roll outward at the top
  subtype:  trundle_bed__trundlebed__trundle__truckle_bed__trucklebed__truckle  a low bed to be slid under a higher bed
  subtype:  twin_bed  one of a pair of identical beds
  subtype:  water_bed__waterbed  a bed with a mattress made of strong plastic that is filled with water

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