In spring 2018 when my daughter graduated from college I bought her a Casper mattress and bed for her first apartment. It has given her a good night's sleep ever since. So this fall I decided I could no longer tolerate a poor night's sleep. When I saw that Casper had introduced the Wave Hybrid I decided to try it out. This is the best mattress I've ever slept on. Previously, with my Tempurpedic mattress I could only sleep comfortably on my right side. With my Casper Wave Hybrid mattress I can sleep on either side or my back and wake up well rested and with no aches or pains. Additionally, with my previous Tempurpedic mattress I'd be in bed for eight hours and still not get a good night's sleep. With my Wave Hybrid I'm well rested after six to seven hours sleep. Thank you Casper.