If you want something that's all-natural, then this could be a good option. This mattress' foam is made by mixing Hevea milk or rubber tree sap with grapefruit seed, coneflower essence, and jasmine essence. Then plant extracts and water are added.
Contains a patented foam that adjusts to your body's contours and distributes its weight to reduce pressure on parts of your body that normally presses against the mattress and usually experiences a feeling of discomfort or even pain.
The firmness could prove to be too much for people weighing less than 130 lbs since this mattress is more firm than soft. They won't be heavy enough to compress the mattress down, which can create pressure points especially when sleeping on your side.