Extend Mattress Life & Add Softness - Instead of replacing an expensive mattress, adding a mattress topper twin on the old mattress is an ideal way to soften firm mattresses and add extra plushness as well Refreshing & Comforting Rest - The ups and downs of the egg crate design promote airflow throughout its soft memory foam layer to dissipate heat and regulate your body temperature, so you can awake restored and refreshed Slip you into a Relaxing Dream - Soothing green tea extract works to eliminate odor and bring fresh tea scent while twin mattress topper contours to the curves of your body to reduce pressure points and transform your sleep into a luxurious cloud-like experience Plush Cover for 360-Degree Protection - The machine washable, -rayon cover adopts skin-friendly knitted fabric, comes with a slip-resistant bottom and adjustable elastic straps which fit mattress depth up to 18", to secures the pad to your mattress eliminating the need for re-adjustments Healthier Sleep Environment - Certified by CertiPUR-US and OEKO-TEX for durability, all material of this twin mattress pad is safe for your whole family. Leave the foam flatly in a well-ventilated area for 48-72 hours until it's fully expanded. If you have any issues within 10 years of your purchase, us for satisfied solution