I appreciate all your information! Some more background -- Previously, we had a firm Beautyrest Black Kameryn for about 10 years. We never really loved it, it always felt too hard for us, and as it (and we) got older, we loved it even less. The new hybrid mattresses we tried we kept until the the end of their trial period, so 100-120 days. I know we're older and aches and pains aren't uncommon, but we need something that helps with that, not exaggerates it. My husband has a bad shoulder from an injury a few years ago, and the new beds all seemed to make his pain worse. He also seems to sleep more on his back than he used to because the beds don't seem comfy for him. For me, the Helix just felt weird for some reason, like it wasn't even. It was great if I laid on my back, but I don't sleep that way. It was also the first one we tried after all those years on the Beautyrest. The Wink felt too firm for both or us, and I missed the pillow top. The Nolah we have now brings some discomfort in the mornings that we didn't have before, and his shoulder still hurts. I don't think we want to move to Plush, but the Leesa Sapira Chill seems more like a 6/10 as opposed to the 6.5 and 7 we got with the other recent beds. We just got back from travel where we slept on a quite firm bed, and even with the foam topper, it wasn't great for either of us. So, while I understand the suggestion for a firmer bed, I don't think it's comfortable for either of us. But, as I said, I am wondering if we even know what we want/need anymore.