Very happy with the resuls. But, I did have to work with it for a week to get comfortable. I'm 5'4". I first tried just using it as my pillow, but kept "ooching" down off the thing at night. Finally put it under my memory foam mattress and it works great.(I also get to use my comfy pillow that way) I no longer wake up with the sinus pressure in my face or that slight morning headache.