I decided to hold off on writing a review until I'd used the pillow for a couple of weeks. I primarily have to sleep on my back it is easier with the C-pap machine), but occasionally on my side, as well. This is honestly the most wonderful down pillow I've ever had. It is comfortable. Cradles my head perfectly -- no neck aches with this pillow!  Thank you!  I'm ordering another and ditching the awful other pillows I bought (one -- from another manufacturer --  was touted as the best pillow for neck ache... It sure wasn't!). Thank you!