We were hesitant to order a mattress on line, yet alone a mattress that arrives in a box.  I can only say this has been the mattress my husband and I have been dreaming about our entire married life.  My husband and I are in our 70’s.  We have owned several mattresses in the past 45 years.  Nothing that compares  to our new Wave Hybrid.  We have used it for s month now.  Every night when we get in to bed we comment about how comfortable it is.  Do I recommend it?  You bet I do.