Bought the side sleeper pillow and was initially thrilled -- the materials are lovely and the case has high quality fabric and stitching. But in the end, it was designed for someone with bigger shoulders than my 5'4" thin build. Also, I'm finding that I roll more between back and side so a side sleeper specific pillow means I wake up stiff, if I sleep on my back. Kept hoping it would squish a bit with use but as noted -- it's high quality and doesn't break down.