The double-sided mattress Carl is the most popular type of foam mattress. It is made from high-quality T25 polyurethane foam, with one side covered in seven-zone profile foam. The seven-zone foam, with its exceptional properties, ensures sleeping comfort regardless of sleeping position. The mattress is divided into seven zones with different firmness levels. These zones create a straight line for the spine. The mattress has hypoallergenic properties. The anti-allergenic quilted cover does not absorb allergens, which is beneficial for allergy sufferers. Additionally, the cover can be machine washed at 40 degrees Celsius, promoting good sleep hygiene. The cover features a zipper, making it easy to remove and put on. The Carl model is not only comfortable but also available at an attractive price.