I bought my Purple genuinely excited by the prospect of an amazing night's sleep. The ads and the science seemed to be speaking right to my needs. That said, you can imagine my supreme disappointment to be requesting a refund after less than a month. First, the good. Purple, as a company, is AMAZING!! They were a dream to deal with in requesting and receiving my refund. They absolutely held up their end of the bargain. 10 stars for their policies and customer service!! The bed, unfortunately, did not provide the restful nights I anticipated despite performing exactly as advertised. The purple gel layer was SOOOOO cool (to the touch and just in general). It felt so unusual in every sense of the word. Pressing my hands into it, I could feel it push back with support and then suddenly give as just the right amount of pressure caused it to flex around my fingers. I couldn't wait to sleep on it. The first few nights were...OK. I didn't sleep great, but they said I'd need time to adjust. I knew that any day my body would recognize the superior sleeping surface it was now being provided and my joint and muscle pains would melt away. After a few more nights, I was beginning to wonder what the problem was. I tossed and turned ALL night. I simply couldn't find a position that would allow me to stay asleep. Now, full disclosure, I'm a big guy. Large frame, about 280. I've had my previous mattress about 10 years. It's an inner spring with a pillow top and it's honestly given me some of the best nights of sleep I've ever had. It's just old and ready to be put to pasture or I wouldn't be in the market. After a few more nights on the Purple, I was able to pinpoint exactly the flaws in the design. First off, it's too thin. This was most apparent during "amorous" activities when I could feel the support platform under my knees with seemingly very little padding. I'm a big guy, so I can't fault them for not providing more foundation foam. I may simply be too large for the bed. The other issue, anyone of any size would likely experience. As I said before, the gel layer provides support until a certain threshold of force is applied. This is ostensibly to accommodate pressure points. The problem is when two connected body parts find themselves on opposite sides of that threshold. It was most notable in my shoulders and knees. My back, being part of the bulk of my body, would depress the gel beyond the crush threshold. My arms, however, would not. This led to my body and arms being supported to two different degrees at two completely different levels. The pressure under my arms was forcing them upward, while the gel under my torso gave way and relaxed. This caused significant shoulder pain during the nights I slept on my back or stomach. Similarly, my thighs were heavy enough to pass the crush threshold, but my calls were not. This created a similar pressure differential right at my knees when I slept on my side, causing knee pain which lasted throughout the day. These two conditions (along with similar factors elsewhere) meant that there was no single position that wouldn't cause me discomfort. Thus, I tossed and turned all night and never got good sleep. It even effected my performance at work to the point I had to sleep on the couch until our new mattress arrived. I don't mean this to seem negative. The bed performed according to spec. That spec just didn't seem to be designed with larger guys in mind. Great company. High quality product. Ultimately just not for me.