Wash after every use!
I was so excited to get this pillow but was soon disappointed. It is comfortable at first but the material irritates you back and leaves marks on it. It also needs to be washed after every use. The first few times I used it, I hung it to dry as instructed but it  had a musty, mildew smell. I have washed it twice in the washing machine and it doesn't seem to get clean. The last few times, I hand washed it and that works much better. The suction power is great and the pillow does offer support .
Rating: 2 stars