I ordered this to try and see if it improved my sleeping position without having to use stacked pillows. It works great and is soft and smooth to the touch. I am going to order another one for my daughter who has sinus problems. You can't feel the incline but your head is higher than the rest of your body and that aids sinus drainage during the night. prevents waking up with stuffy sinus's and also prevents sinus headache for me. I put my regular pillow on it and it does not slide off. Great product!