Dive into the luxurious feel of this serta 4-in. Memory foam mattress topper. Included: 1 Mattress Topper(s) Features: Antimicrobial, Memory Foam, Hypoallergenic, Deep Pocket Manufacturer Warranty: 5 Year Limited Bed Size: Twin Xl Measurements: 80 Length/Inches, 39 Width/Inches Mattress Depth: Up To 17 In Deep Base Material: 100% Foam Filling Content: 100% Poly-Foam Care: Spot Clean Thickness: 4 - 4 1/2 Inch Comfort Level: Basic Protection Level: Basic Mattress Pads & Toppers Type: Mattress Toppers Country of Origin: Made in US