DO NOT BUY SEARS MATTRESS IF YOUR BASING IT ON THE FAKE 10YR WARRANTY. MY $800 mattress thats less than 2 yr's old is no longer firm as it was 2 years ago, and I cannot sleep in i no more due to fractured disks in low back. I have returned to guest room where the firm mattress resides, thats NOT form sears. Long story short, Sears compares your mattress and body wait to a shoe string and a ruler, in order to return your 10 mattress and pay them a $75 delivery fee, you must email them pic of how your string and ruler shows there's a 1/5 in or more sink hole. HEY SEARS string doesnt weigh '185 lbs. SO stupid and a waist of $$ and time, just buy cheap to your firmness and plan on changing every 2 years. WAY cheaper and you dont have to get the BS from SEARS. STOP giving them your $$$$$$$$$$. 3/11/11