Having given up on mattress shopping (for now), I decided to buy a 3" topper to improve the plushtop hybrid mattress that after 7 years never gave me the softness I wanted. Since I badly wanted softness with a pronounced body contour, I went with a Tempur-Adapt + Cooling Topper. For me, it's an instant hit. It gave my mattress new life, with a feel exactly like the pricy LuxeAdapt Soft I loved in the TP showroom. A lightweight back sleeper, luckily I don't sleep hot. To me, the 3" thickness was enough to give me the hug I wanted. Plus, I bought the topper for 40% off! But for the OP, this TP topper might be too soft. To be sure, check out the LuxeAdapt Soft for a sense of how this topper would feel. More on reddit.com

This is the dilemma with toppers and, unfortunately, there's not a way to know ahead of time. If the mattress is *very* hard you could try a three inch to start. If it's only a little bit hard then I'd try a two inch. But unfortunately, no way to know until you try. More on reddit.com

Density really does matter in a mattress topper. I have many, many different toppers of different densities and my favorite, by far, is the 4lb topper from Foam Factory. They can send you sample cubes ofwhatever you like and at least you can feel the difference in “squishiness” between them. The 4lb has some heft to it and feels much more supportive than the 2.5lb and something like Serene foam. I also had a Viscosoft topper, and that, at 3.5lb density was way, way too firm for me, but I weigh 132 and am a side sleeper. It was an excellent quality topper, and I can see it working for a lot of people. More on reddit.com