We have been struggling for some time to find another mattress that was comfortable. We owned a Stearns and Foster for 10 years and loved it but it was getting saggy and was time to be replaced. Since then we have gone through countless mattresses. We tried numerous memory foam mattresses including; bed in a box, casper, and finally the purple 3. Our bed in a box was great for about 2 years and then we both started get back pain. We had a friend that loved their casper so we gave that a shot and it lasted about 3 months before we gave up. Thinking that a memory foam with a twist would be good we tried the purple 3. It seemed great in the showroom but once again after 3 months we couldn't take it anymore. We decided straight memory foam wasn't the way to go and did some research falling on the Sealy Kelburn II Hybrid. We've had it for over 3 months and neither of us are having back pain anymore from our bed. We can actually sleep in on this mattress!