I've bought many things online and numerous items at Overstock.com, but this mattress is TERRIBLE! I want my money back! Not only does it NOT look as indicated, it did NOT have the VertiCoil System it advertised! How do I know, this cheap "Knock Off" Serta is not made correctly and the tag does NOT state it has tthe VertiCoil System - Which is the primary reason I bought the mattress. Further, the mattress is VERY Wobbly! When you sit down, lay down or move, it is like being on the ocean - moving left to right and up and down. You couldn't even have a kid jump up and down on it because it is so unstable. With every movement, the bed rocks so uncomfortably. I noticed it within the first 3 hours of its delivery on 12/29. I called overstock to get my money back and they refuse. I want to send it back but I can't! This is a terrible waste of a half grand! Serta can't make these mattresses, they must lend their name to some substandard mattress maker. I CAN'T STAND THIS TERRIBLE MATTRESS! I want my money refunded. Note to the wise, DON'T BUY MATTRESSES ONLINE!