We have one of the firmest most returned temperpedic mattresses… this topper really was a game changer in terms of overall comfort on the mattress. It does move around a bit… the temperpedic adjustable vibrating base ensures that…. But overall a HUGE upgrade, more so when consisting I snagged this on a Black Friday sale in 2023 for like 200-250 bucks. Can’t beat it!
Does feel cooler to the touch… but that doesn’t last that long. Does it actually sleep cooler… couldn’t say. Still a 10/10 product for my needs.