When you first receive your mattress, to help equalise body impressions, we suggest rotating your mattress every time you change your sheets (weekly) for the first 2 months, and then once every three months thereafter. It is a completely normal occurrence, and is not a manufacturing fault for your mattress to develop body impressions as the extra comfort layers settle.
Another thing to note, is the softer the feel of your mattress, the more likely you will see some body contouring as the foam layers and cushioning are more malleable. Acceptable standards of contouring are between 3-5 cm.
For more information, you can watch a video detailing how our beds are designed to contour by clicking on this link https://youtu.be/wADDLy8pzXw
Alternatively, you can read about body contouring on our manufacturer's customer care website at this link https://comfortgroup.my.site.com/s/article/Designed-to-Contour-to-your-Body-Shape