Love it, Love it, Love it!!! We have had out Morphiis mattress for almost 5 months now and absolutely love it! My husband was skeptical about buying a mattress sight-unseen and online but with the 100 nights trial and free returns he decided to give it a try. The mattress was delivered super-fast and the set up was so easy. We followed the advice to sleep 2-3 nights with all the medium inserts in the bed and then customize it. This worked great. We each customized our side of the bed and slept another 3 nights. I changed mine again but my husband has kept his the same. I haven’t slept this good in years. I was having some pretty bad back pain but after sleeping on my Morphiis mattress the back pain is gone! I also love the fact that you can change your side of the bed and tweek it when you have a shoulder, hip or back issue that comes up. This is by far the best mattress concept ever! I have contacted customer service several times with questions and have received an amazingly quick response each time. Morphiis customer service is by far the best customer service I have dealt with in years! Thank you, Morphiis, for an excellent mattress and superb customer service!