I’ve been cycling through quite a few mattresses from Costco. I’m 5’8” 160 pounds with back/neck pain and insomnia worsened by Lyme disease. I sleep on my back. My wife is 5’6” 130 pounds and a side sleeper. She can sleep anywhere. I’ve been having quite a bit of trouble with my sleep. For all of the beds, I broke them in over the first few weeks and rotated them regularly. The mt auburn was too firm for me and generally didn’t feel all that great. It was a decent mattress overall but wasn’t it for me. Like most mattresses without a softer pressure relieving layer, it caused hip stiffness and pain. Sealy posturepedic ridge crest was a step up. The euro top added a decent layer of comfort, but the bed started hammocking within a few months and became uncomfortable to me as I really like an even surface. My wife liked this bed though. We briefly tried the 12” sleep science Sonoma flippable mattress but I couldn’t last more than an hour on it. It felt cheap and unsupportive. The novaform serafina is a decent feeling but firm mattress that I occasionally sleep on at my parents house. Well constructed but I find it to not have enough pressure relief (though maybe it’s not well broken in). The Sleep science 13” Napa is my favorite of them all, but it only comes in a split king and I already have an adjustable base. The memory foam comfort layer is thin but relieves pressure, and the latex layer under that does a great job of easing you into the denser foam beneath. I’ve only slept on it once and it felt great, but when I demo it or lay on it, it feels amazing. Kirkland Stearns and Foster. I had this for the longest, about a year. I wanted to keep this mattress forever but there were a few flaws that ended up disrupting my sleep. The quality of construction and materials feels great. While it came firm, it broke in nicely and was a premium feeling mattress. I ended up adding a 1.5” inch cooling memory foam topper to add just a bit of pressure relief and it felt perfect for a while. After about 9 months, the body indents were starting to make my shoulders shrug upward. The kings ridge pressed on my side as well. And the edge support is too wide, as those springs wear differently than the main support coils. All of these things together caused the usable sleep area to be quite small on the king mattress and it stopped being supportive/comfortable to me. If this stayed how it felt I’d have kept it. Tempur pedic flex prima hybrid. This is the bed I’m currently on, it’s been about 2 weeks, so I don’t have a full review of it, but it’s been decent. I like how uniform the surface feels. It’s quite firm right now, but I’m expecting it to break in a little bit. If it’s a 7.5 firm right now, I think the bed will be great at a 6 or 6.5. It provides great support, but just a bit more pressure relief would go a long way. I might try a 2 inch Tempur pedic topper on it to see if it gives it that softness without losing too much underlying support. Overall, I do think many people (my wife being one of them) would have been happy with many or most of the mattresses I’ve tried. Costco’s return policy is keeping me sane while trying to figure out how to deal with my aches and pains. I’m realizing I should probably turn this into a post haha Answer from Deastruacsion on reddit.com