The Topper T25 is a mattress made from high-quality T25 polyurethane foam. The mattress has a firmness level of H2 and a height of 5 centimeters. This mattress topper provides support and comfort for the entire body. The mattress has hypoallergenic properties. The anti-allergenic quilted cover does not absorb allergens, which is beneficial for allergy sufferers. Additionally, you can wash the cover in the washing machine at 40 degrees Celsius, ensuring good sleep hygiene. The cover features a zipper, making it easy to remove and put on.