I purchased a mattress from Advanced Comfort, Abed, Dormia in 2001. All three of these names are on my paperwork and/or on the product.
I assume they were bought out or some such bankruptcy type situation. I paid $1500 for a queen mattress and in 2007 went to move it and found both rubber hoses had cracked and were junk. After much effort, the internal air mattresses were replaced under warranty. Recently, (4 years later) one mattress failed to inflate despite everything I tried.
They made me jump through all kinds of hoops (original warranty copy, original receipt, pictures) and I think they were surprised when I came up with it all. Suddenly, I had to pay $177 (65% of MSRP) once I had all the paperwork in order. A scam.
I can get an aftermarket one for a fraction of that. Do not buy from these people if you want anything covered under warranty.