Strong's #3326: yatsuwa` (pronounced yaw-tsoo'-ah)
passive participle of 3331; spread, i.e. a bed; (architecture) an extension, i.e. wing or lean-to (a single story or collectively): -bed, chamber, couch.
Brown-Driver-Briggs Hebrew Lexicon:
1) couch, bed
Part of Speech: noun masculine
Relation: passive participle of H3331
This word is used 8 times:
Genesis 49:4: "then defiledst thou it: he went up to my couch."
1 Kings 6:5: "the wall of the house he built chambers round about, against the walls of the house"
1 Kings 6:6: "The nethermost chamber was five cubits broad, and the middle was six cubits"
1 Kings 6:10: "And then he built chambers against all the house, five cubits"
1 Chronicles 5:1: "was the firstborn; but, forasmuch as he defiled his father's bed, his birthright unto the sons of Joseph"
Job 17:13: "the grave is mine house: I have made my bed in the darkness."
Psalms 63:6: "When I remember thee upon my bed, and meditate on thee in the night watches."
Psalms 132:3: "nor go up into my bed; my bed;"