In Genesis 47:31, the bed signifies things of the interior natural, to which the Lord turned Himself. (Arcana Coelestia 5721)

In Exodus 8:3, this signifies inmost things. (Arcana Coelestia 7354)

In Revelation 2:22, this signifies doctrine which everyone acquires either from the Word, or from own intelligence; for the mind rests there, and sleeps, as it were. (Apocalypse Revealed 137)

(Riferimenti: Amos 4, 6, 6:4; Apocalypse Explained 1146)