The ultimate in luxury. Heavenly Harmony is 4 layer of 3″ organic and natural latex that comes in different densities such as Firm, Medium, Soft. Our mattress has a zipper so you can control the feel of your mattress, even years down the road. Simply. unzip and move layers around to make it firmer or softer for each sleeper. This mattress will not take a body impression or break down with proper protection and support. Custom made for you using organic cotton, wool and latex.