Deep Pocket Pillow Top Mattress Topper Extra Long Stretches Up To 18 Inches Microfiber Fluffy Soft Mattress Pad: Twin XL Mattress Pad (39''x80'') with 300 GSM microfiber top layer and the new designed microfiber filling provide softness and extra resilience, that giving you cozy feel and most relaxing sleep. Cooling Breathable Mattress Pad: The microfiber top makes the surface feel cooling and breathable, the microfiber filling (48% 3D+35% 7D) increases circulation and breathability. It will provide you a cozy and breathable sleeping environment, make you feel comfortable without extra heat and sweat. Quilted Fitted Mattress Pad:This mattress pad is ergonomically designed with three zones. Adopting an innovative wavy design and cloud-shaped quilting design, this mattress pad creates efficient airflow through the bedding, it will be more supportive, soft and durability. Mattress Pad with Deep Pocket: The 360 fabric pocket sides can be easily stretched to fit mattresses up to 18" deep. Fully-elasticized fitted sheet design pulls over the mattress easily. Machine Washable Mattress Pad:Machine wash separately in cold water on a gentle cycle and tumble dry low. When you first open it, please leave the mattress pad out for 48 hours as it will start to expand and fill with air, then reshape before use.