Through 9/3, get this Home Design Waterproof Mattress Pad in your choice of size, originally $70 and normally on sale for $41.99, for $24.99 at Macys.com. Shipping is currently free with $50, so pad your order to avoid the fee (otherwise add $9.95). Shipping is also free when you add any Beauty Item to your cart. We found this same pad going for $53 elsewhere, making this your best bet by $28. It comes in sizes twin-california king or sofabed and has a four-star review from Macy's customers. Sales tax is charged in most states.