This king size Tempur Pedic mattress is firm, the mattress topper (3 inch thick) is medium and the protection mattress cover goes over the entire set. We used this mattress for about 2 month, unfortunately it was not the right fit for us. We had it in our guest room for about 4 years, but it was hardly used there. Now with children growing up and moving on we need to sell this amazing mattress set. The price reflects the must go situation. Mattress was new $2500, Topper $550 and Mattress cover sheet $200 plus tax - $3650 Everything is in mint condition