New Shipment of Serta Mattresses Available at Below Liquidations Prices. Looking for a the best possible deal on a premium Serta mattress? Well, look no further. Fred just received a truckload direct from the Serta factory and they will sell out quickly. Forget shopping the big name retail warehouse stores because Fred's prices will beat them by a mile. This is an especially good time if you're interested in the Serta Castleview King Pillowtop Mattress, as received a good supply of these. Remember, the sooner you stop by, the better the selection. Don't wait too long and miss out.