These pillows have surpassed my expectations of how comfortable they are!! I am so pleased and my spouse loves his as well. This is huge for him because he was involved in a car accident almost six years ago and he suffers from chronic whiplash so it's incredibly difficult for him to sleep comfortably. We have tried multiple brands and thicknesses of pillows and this specific pillow is the winner! It conforms to your head and the cooling technology is a MAJOR plus. I am a stomach/side sleeper and my husband is a back/side sleeper and we've both gotten amazing sleep since using these. I am so impressed and if this company ever releases a mattress similar to this pillow, I will definitely be purchasing one for everyone in our household.