Keep Your Mattress Dry, Comfortable & Mold-Free HyperVent is a premium ventilation underlay that helps reduce condensation beneath mattresses and cushions by creating a permanent ¾" air gap. This continuous airflow helps prevent trapped moisture, mold, mildew, damp bedding, and musty odours. Ideal for boats, RVs, camper vans, cabins, tiny homes, and anywhere condensation forms beneath a mattress. Why Choose HyperVent? Reduces condensation beneath mattresses and cushions Helps prevent mold, mildew, and musty odours Creates a permanent ¾" ventilation gap Durable open-loop polymer construction Lightweight, flexible, and easy to trim Cuts easily with scissors or a utility knife Washable and maintenance-free Safe for use on fiberglass, wood, aluminum, and other hard surfaces Easy Installation Measure your mattress or sleeping platform. Cut HyperVent to size. Install with the polymer loop side down and fabric side up. Place your mattress on top. No adhesives or special tools required. Ordering Information HyperVent is supplied in a 39" (99 cm) wide roll and sold by the foot, allowing you to order only the amount needed for your project. For mattresses wider than 39", simply install multiple sections side by side and trim for a custom fit. Need help determining how much to order? Check out our HyperVent Size Guide below. Perfect For Boats & V-Berths RVs & Motorhomes Camper Vans Truck Campers Cabins & Tiny Homes Houseboats Under-Seat Cushions Storage Lockers Galley Shelves Areas prone to condensation Specifications Material: Open-loop polymer matrix with breathable fabric Thickness: ¾" (19 mm) Width: 39" (99 cm) Sold: By the foot Colour: White
