The Lumex® Foam Mattress Extensions provides the ability to convert an 80” mattress to better fit into an 84” bed frame. Features: • 4” Foam mattress extension fills the gap when using an 80” mattress on an 84” bed • Hook and loop fastener secures extension to mattress to reduce shifting • Soft and durable zippered cover is bacteria resistant, flame retardant, fluid retardant, anti-static, non-allergenic, stain resistant, and easy to clean • Meets 16 CFR 1633 requirements • Latex Free • Sizes: 4L x 35W x 6D • Warranty: 12 Months Cover, 24 Months Mattress