Mattress protective cover size: , 120 x 200 cm, suitable for mattresses with a height of ≤ 30 cm. WATERPROOF: The main part of the fitted sheet is made of brushed microfiber and a waterproof membrane, which will not damage your mattress in the event of a child's accident at night. 360° Breathing: Both sides of the waterproof mattress cover are made of soft and breathable fabric to ensure that the mattress breathes normally.The mattress won't be stuffy and moldy, and the sheets will be warm in winter and cool in summer. Extremely elastic: The mattress protector comes with elastic bands that are elastic all around for a perfect fit and can extend the life of your mattress for years. Fabric: Thanks to the improved fabric and new technology, the waterproof fitted sheet will not shrink or fade.Silence is the highest quality standard in sleeping comfort.