I have tried several mattress' in the past (including a Tempurpedic) and none have come close to my Casper Wave Hybrid mattress!!  It is soft with just enough support to be the most comfortable mattress on the market today.  I plan on buying another this fall for my 5th Wheel as the mattresses that come in RV's are horrible.  I spend about 4-5 months a year camping in the south every winter and sleeping will be much better once the original RV mattress is replaced with a Casper!