Liquidations are a great resource for that line of stock, will be a gaylord/pallet load at least. You would be looking at a starting price of about 300-350 for a small gaylord load, but shipping can hurt you. You could expect shipping to be anywhere from 200-300 depending on your location.
What you also need to watch for with liquidated stock is what you are buying, most of these bedding set loads are customer returns, so you may well find some damage in amongst your purchase.
Cheers