Puri Wave (10") is our mattress made for adjustable beds, which features a flexible 2" ribbed coconut layer (coir) sandwiched in between 4" of organic latex, plus 2" of organic latex, which is flipable. It's great for people who toss and turn frequently, or roll around. They can sleep on the very plush side when needed, or the firm side when the body needs more support. Pure comfort and bliss in plush comfort.