I purchased a mattress from Mattress Warehouse in August 2008 and was told there was 10 warranty on the mattress that would be honored only if the mattress was free of stains, rips, etc, so I also purchased the mattress cover they recommended for about $100. Just a couple months after purchasing the mattress it began to sag on both sides where we sleep in excess of 2 inches. After submitting a complaint on www.sleephappens.com, I waited several days for a response and ended up sending three emails, leaving 3 messages with their customer... read full review »