My husband is an amputee and was having trouble maneuvering himself sitting up and getting out of bed. He noticed a difference the very first night -- he slept comfortably and said he didn't think he even moved at all during the night. I slept more soundly as well. We also ordered the mattress protector which fits the mattress, but I was disappointed that it was not the type that enclosed the mattress completely. So far, things are good. We're waiting to see if anything changes before our 90 days are up.