Love this platform bed from pallets! Using Wood Pallets: Make a bed frame. Just sand the pallets to remove splinters, and then paint and varnish to seal it all. And as an added bonus, you can use the underside for storage.
Pallet Bed for the girls. I like this, especially for a temporary spare bedroom in my craft room" solution. I think I would actually hang the painted pallets vertically in my craft room when no guests are here and use the pallets like a giant Idea board.