This Bonnell spring mattress offers your children comfort and a cozy sleeping experience. The fabric features a simple and clean look while being breathable, skin-friendly, and durable. The Bonnell spring system consists of interconnected hourglass-shaped steel coils that are firm and stable, providing excellent support and longevity. The mattress is made up of several layers, including a foam layer, an insulation layer, and a spring layer. This combination offers a soft to medium sleeping feel and high sleeping comfort in all sleeping positions. Additionally, the mattress effectively absorbs noises and vibrations caused by movement, ensuring a quiet and undisturbed sleep. The mattress is compressed and rolled up in a box, making it easy to move and set up in your room. For hygienic reasons, the mattress cannot be returned if the packaging has been opened or removed. Color: White and Black; Material: Fabric (100% Polyester); Filling Material: Bonnell Springs, Foam, Insulation Layer; Dimensions: 80 x 160 x 18 cm (W x L x H); Firmness: Medium; Jacquard and quilted pattern.