Give yourself the gift of comfort with the Serta® Perfect Sleeper® Glenmoor 3.0 medium pillowtop mattress. This mattress features a premium layer of Serta exclusive HexCloud™ Gel Memory foam with unique geometric cutouts to deliver cool, contouring pressure relief. Plus, the cleanest kind of comfort with Antimicrobial mattress protection to keep your mattress fresh and clean from odor-causing bacteria+ and a cool-to-the-touch feel with our CoolFeel™ fabric. This product does not protect users against bacteria, viruses, germs, or other disease organisms. Serta® Perfect Sleeper® The enhanced, all-new Perfect Sleeper provides more than 40% better pressure relief with the help of our exclusive Serta Cloud foams The Perfect Sleeper is built with Serta’s exclusive HexCloud™ Gel Foam which features unique geometric cutouts designed to help relieve pain from pressure points. Serta’s custom coil systems offer outstanding support while minimizing motion transfer. CoolFeel™ Fabric on the sleep surface provides a comfortable, cool-to-the-touch- sensation from plant-derived technology. Best Edge® Foam Encasement helps reduce the edge roll-off, extending the sleep surface. *Average of new Perfect Sleeper vs. average of previous Perfect Sleeper Serta’s biobased phase change material consists of 53% biobased content and is certified through the USDA BioPreferred® Program. Antimicrobial Mattress ProtectionThe cleanest kind of comfort with antimicrobial mattress protection. Keeps mattress fresh and clean from odor-causing bacteria This product does not protect users against bacteria, viruses, germs, or other disease organisms. Delivery, Set-up and Mattress Haul-awaySerta’s White Glove Delivery+ Service includes in-home delivery, up to two flights of stairs. The delivery agent will remove the mattress from packaging and set-up basic bed frames (if no tools are required). The Member may ask the delivery agent to move a used mattress to another room at the location or haul-away the old mattress from the premises. Estimated delivery time is 10 to 12 business days for standard zones; remote zones may take longer. The delivery agent will call the Member to set up an appointment. Space-Efficient Design Measuring 14"H x 37.5"W x 74.5"L, this Serta Perfect Sleeper pillowtop mattress fits easily in small rooms. Ideal for kids and individual sleepers, the compact design provides plenty of space to stretch out without taking up the whole room. Choose Your Own Foundation This Serta Perfect Sleeper Glenmoor 3.0 twin mattress comes on its own but is compatible with a wide range of box springs and foundations. Select a platform foundation to store items under your bed or pick an adjustable foundation to prop yourself up at a comfortable angle to watch TV or read in bed. What are the measurements/assembled size? This twin-sized Serta Perfect Sleeper Glenmoor 3.0 pillowtop mattress measures 14"H x 37.5"W x 74.5"L. Does this mattress come with a box spring? No box spring is included with the Serta Perfect Sleeper Glenmoor 3.0 mattress. Mattress Buying GuideLooking for the perfect mattress for your needs? Click to view our Mattress Buying Guide. Need Help? Ask our dedicated Sam’s Club members-only Serta hotline, staffed especially for you by Serta Mattress Specialists: 1-888-240-1945 available 24 hours/7 days a week.