LUCID 3 Inch Mattress Topper Queen Memory Foam Mattress Topper Queen 5 Zone Gel Infusion CertiPur Certified Foam Twin XL Size Dorm Room EssentialsMemory FoamExtra plush3 inchmemory foam provides a deep sink and super-soft feel; Zoning pattern may varyMemory foam is infused withtemperature-regulating gelandtextured to improve breathabilityand airflowTargetedconvolutedzones reduce pressure at different points of body contact to prevent tossing and turningSpecialized memory foam formula is designed to be extremely soft, airy,and responsiveNew foam scent is normal and will dissipate over the first 48 hours after opening; this product features a 3-year warranty