This is my in depth review of the experiences I have had with the Purple Mattress. Included is the observations of myself. Also included are some observations of my wife's habits. Mattress Background The previous mattress we were using was a Stearns and Foster Beautyrest 2 Queen. I had received it used 10 years prior to replacing it. Its total age was anywhere between 15-20 years. Late 2014 saw the addition of a Novaform 3in Gel Memory Foam cushion also a pillow topper. Personal Background Age: Mid 30's Weight: Mid to higher 200's Height: 5'10 Medical Issues: Reconstructive surgeries to both hips. Chronic Issues: Pain in: Hips, knees, shoulders, lower back, neck. Circulation issues with arms. General Observations with the Purple Mattress Weight: No one is being dramatic when saying this mattress is HEAVY. Installation: Can be cumbersome due to weight but if forethought is taken you and a second body can get it done in a snap. Feel: It is more firm than one would think from the videos. There is also give to it when enough pressure/weight is applied. Timeline Night 1: Installation of a new bed frame and the mattress left us exhausted. Sleep came easy. Could really tell the ease at which it lowered the pressure on key areas of my body. Week 1: Observing less pain in key areas. The give of the mattress takes time to learn so that one can get up and out. Wife is falling asleep easier and getting more hours. Week 2: Noticing changes in my sleeping positions. Previous sleeping positions lead to older issues with circulation and muscle strain. Allowing the mattress to do more supporting relieves these issues. Example: Sleeping fully on side is more comfortable that part side/part stomach. Wife has adjusted sleeping position. She is sleeping longer while on her back. Week 3: Sleeping positions have not adjusted as much as previous week. Decided to change the pillow used. As side sleeping is prefered need to use something thicker than a 4in dense memory foam. Week 4: Sleeping with a different pillow has helped sleeping more. Side sleeping does require thicker support. Noticing more dreams than I did in the past. Mid-night wake ups happen far less frequently. Usually sleeping 5-6hrs straight, instead of the previous 2-3hrs. Week 5: Finding myself sleeping longer. Before nightly average was 7hrs. New nightly average is 9. Old issues of waking very groggy are going away. When I wake up on my own I am very alert. Week 6: Feeling fully adjusted to the Purple Mattress. Have not waken up with any lower back pain in 2 weeks. Knees do not ache when getting out of bed. Review The Purple Mattress is something I would've never expected. A firm platform that moves with me where I need it. A bed that allows my wife and I to sleep in better comfort that is beneficial to our health and sleeping habits. If you are someone who wants to sleep on soft stuff than this probably isn't for you. The support will throw you off. If you are one that wants to sleep on a hard floor, well you might just be surprised by the feel of the Purple. You can have comfort and support. We absolutely love our Purple. This can not be said enough. I wish I could describe the feel of it better so that others may be able to decide to make the change to Purple. It doesn't isolate motion as some other platforms. The more weight that is applied the more the mattress has to adjust. The top layer has the bounce back of something that is close to jello, but no wiggle/jiggle or mess. The sleeping temperature of it is indeed neutral. There is no cold or hot spots, just cold or hot people. The sleep that we get on the purple feels natural. The only thing close to this feeling is that of a water bed, without the constant motion. If you are thinking of moving to Purple then we do recommend it. If it does not work out for you the company has a great return policy, or there is sure to be someone you know with a very old mattress that can use an update. The price point is fantastic, so why not try it out?