Netting draped softly around your bed (even if you don't have a canopy bed) creates the feel of a tropical retreat. Pick up preconstructed netting (complete with hanging hardware) or do it yourself with soft, gauzy fabric and a hook in the ceiling.Sources:
carries a few hanging nets.
• West Elm
has gauzy curtains that could be hung on a canopy bed or from curtain rods mounted to the ceiling around your bed.