ihocon: Smart Air Beds Champion Raised Air Bed with Built-In Pump, Gray, QueenAmazon 現在 Smart Air Beds Champion Raised Air Bed with Built-In Pump, Gray, Queen 原價 $249.99, 特價 $137.60, 在價格的下方有個 $20 Off coupon (需先 sign in Amazon account), 按 “Click Coupon”, 可再省 $20, 最後變成 $117.60, 節省 $132.39(53% Off), 免運費!!