Bought this king size matress. Within 3 months there was a noticeable sag on both sides. Contacted the seller and never heard back. Fast forward and bought a real memory foam. Its heaven. Decided to cut the sleepy open and burn that pos. 1 inch of so called memory foam. 6 inches of 1970s egg foam. 1 inch of so called pillow top ( scrap pieces) this was the worst purchase of my life. If this review stops even one person from buying this then i didnt waste my money on such a bad pos. DO NOT BUY User's recommendation: Do not buy unless its your greatest enemy.