On our second sleep number, #1 was pretty much destroyed by the dog running and jumping onto it. It was around 7 years old, every time we went to sleep number store they tried talking us out of buying a new one and just use warranty to get it rebuilt. I think that showed what kind of company it is. So , to make a long story even longer, got the new mattress, queen size middle of the road model, wake up rested and refreshed, once I found my number (65) no need to change. Wife messes with her number because she has the app on her phone and studies it often. Wouldn't buy another brand of mattress