Novilla memory foam mattress topper is dedicated to improving your sleep experience. -Does your mattress make noise? -Did your mattress lose its support? -Is your mattress too firm or too soft? -Is your mattress a BIT uncomfortable? Your Novilla mattress topper is already there for you! A great way to extend the life of gel mattress topper : -Protect the gel memory foam mattress topper from sunlight. -Turn regularly to allow the foam to recover. Firmness & Thickness Selection Guide? 2 Inch - ultra soft 3 Inch - soft 4 Inch - medium Firm Some questions you may be interested in: Q1: Why did the foam mattress topper I receive not expand to the thickness of what I ordered? A1: The compressed memory foam mattress topper needs 48 hours to expand back into its original shape and size. Q2: Does this bed mattress topper have any kind of smell or odor? A2: Normally no. The “new product smell” that you may experience has zero degree of hazard and it will dissipate in few days. So don't worry. Package content? 1x Novilla memory foam mattress topper 1x Package Opener 1x Manual & Warranty Card Tip? 1.In order to protect the memory foam effectively and prolong its life, the cover we designed is non-removable. 2. The low temperature, high humidity, high air pressure or poor ventilation condition in your room may delay the expansion process. Please allow at least 72 hours for the mattress topper to fully expand. 3.If you have any questions about our gel memory foam mattress topper , please contact us. Our professional service team will help you and give you a worry-free service experience.