Bests & Worsts Reviews from Amazon

This was a great mattress. It was comfortable and supportive, however, one other reviewer had the exact same problem I do. I bought this mattress last July or so, and by September, I notice that the sheets wont stay on properly on one side of the bed (they will bunch up on one side, like they're being pulled, which eventually pulls the sheets off one or both corners). I kept fixing the sheets like it was my sleeping that was causing it. Eventually I rotated the mattress to discover the same problem happening on that same side (now facing a different wall). What was happening was that the layers of the mattress were separating and sliding, which was bunching up the top layer into one side. If I put my hand over the edge of the bed, there is a 2-3" ledge from the layer below it. The problem can be fixed by opening the mattress and realigning the layers, however, this is extremely tedious and only temporary (it will be back to how it was within a week). Unfortunately, I could not find any contact information on Sarah Peyton and neither could Amazon. Fortunately, Amazon has granted me an exception to return this item, I only have to pay shipping. Summary: The layers of the mattress eventually loosen and slide around, which does not allow sheets to hold on properly to the mattress. It also has the potential to stretch and damage sheets as well. Edit: Amazon paid for my return shipping and refunded me with 20% off of what I paid.