OmegaOmega is the best-seller among cotton mattresses, and can be used on all bed and sofa bed and frames except Skater. A comfortable, classical mattress with three layers of carted cotton on each side of a 5 cm freon-free polyether foam core. It should be aired and beaten regularly to prevent the cotton from compressing. Suitable for all frames except Skater. Available with both detachable and non-detachable covers.