As opposed to the Derila, the Zymme is double sided, while you’ll see in the images earlier mentioned. You are able to flip it around and use it as a flat pillow in the event you don’t need to have or want the contours. It’s also not 100% memory foam, https://cervical-pillow94938.blog-kids.com/29628156/the-2-minute-rule-for-anti-snore-pillow