See above. Great for side sleeping in the position I describe under "Best Uses". Extra plush hybrid model, Copper II, means the mattress makes room for my hips and shoulder/head area without stress on them. I use small pillows under bent knees and head, and put arms down toward knees with palms open. The mattress so far (I got it about a month ago, does not leave indentations where my hips and shoulder/head areas are, and I expect that very good result to keep up.