While I really like this mattress so far I gave it 4 stars because it is too heavy for 1 person to change bottom sheetsmattress protection.

After 20 years of using Sleep number systems I wasn’t sure I could get the right firmness on a “normal” mattress!  I got a medium firmness Fortunately this mattress firm level works great!  

So far I only have one negative comment - the mattress is so heavy it takes 2 people to change sheets and even then it’s next to impossible to lift it high enough to properly get the bottom sheet on fully. The same holds true for the mattress pad as well. It would be easier if there were handles on mattress to be able to use to lift mattress.