https://home.woot.com/offers/novilla-12-inch-king-memory-foam-mattress?ref=w_cnt_lnd_cat_home_14_7 12" Novilla King Medium Firm Memory Foam Mattress on sale for $149.99. Shipping is free for Amazon Prime Members (must login with your Amazon account and select a shipping address in order for Woot to apply free shipping) or is $6 per order.