HyperVent Size Guide: How Much Do You Need for Your Mattress?
Not sure how much HyperVent to order? Use our complete size guide with recommended lengths for boat, RV, camper van, and standard mattress sizes.
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HyperVent | SKU:
HYPERVENT
HyperVent Condensation Prevention Underlay for Boats, RVs & Camper Vans
Regular price
$22.99 CAD
Unit price
/
Unavailable
HyperVent Condensation Prevention Underlay for Boats, RVs & Camper Vans is in stock and available for pickup within 24hrs.
Ships By Sat, November 14
Special order — shipping time varies
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Why Shop With Us
Why Shop With Us
✔ Locally owned in Nanaimo, BC
✔ Trusted by boaters and anglers since 1986
✔ Knowledgeable staff with real on-the-water experience
✔ Large in-stock selection of marine & fishing gear
We’re here to help you get the right gear the first time.
Shipping & Pickup
Shipping & Pickup
We ship across Canada with fast, reliable delivery from our Nanaimo location.
✔ Trusted since 1986
✔ Fast Canada-wide shipping
✔ Expert support available
Need it sooner or have questions? Our team is here to help.
Returns & Warranty
Returns & Warranty
We stand behind the products we sell and want you to shop with confidence.
✔ Easy returns on eligible items
✔ Manufacturer warranties supported
✔ In-store support available if you need help
Some items are non-returnable. Please review our full Return & Refund Policy before completing your purchase.
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?
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Reduces condensation beneath mattresses and cushions
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Helps prevent mold, mildew, and musty odours
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Creates a permanent ¾" ventilation gap
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Durable open-loop polymer construction
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Lightweight, flexible, and easy to trim
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Cuts easily with scissors or a utility knife
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Washable and maintenance-free
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Safe for use on fiberglass, wood, aluminum, and other hard surfaces
Easy Installation
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Measure your mattress or sleeping platform.
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Cut HyperVent to size.
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Install with the polymer loop side down and fabric side up.
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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
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Boats & V-Berths
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RVs & Motorhomes
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Camper Vans
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Truck Campers
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Cabins & Tiny Homes
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Houseboats
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Under-Seat Cushions
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Storage Lockers
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Galley Shelves
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Areas prone to condensation
Specifications
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Material: Open-loop polymer matrix with breathable fabric
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Thickness: ¾" (19 mm)
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Width: 39" (99 cm)
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Sold: By the foot
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Colour: White
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BrandHyperVent
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SKUHYPERVENT
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TypeMattress Ventilation Underlay
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Bedding sizeCut to Size
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Color patternWhite
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FabricBreathable Fabric
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MaterialOpen-loop polymer, Breathable fabric
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Mattress protector featuresBreathable design, Moisture control, Airflow / Ventilated, Mold & mildew resistant, Lightweight, Flexible, Maintenance free, Washable, Durable, Easy to cut / Trimmable
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Barcode910000015594
Want to learn more?
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6 Smart Uses for HyperVent on Boats, RVs & Camper Vans
Not sure how much HyperVent to order? This guide covers recommended lengths for common mattress sizes, measuring tips for boat V-berths and RVs, and everything you need to order the...
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How Does HyperVent Work? Prevent Condensation Under Your Mattress
Learn how HyperVent creates a continuous airflow beneath your mattress to reduce condensation, prevent mold and mildew, and keep boat, RV, camper van, and cabin sleeping areas dry and comfortable.
Frequently Asked Questions
Q. What is HyperVent used for?
HyperVent creates airflow beneath mattresses, cushions and bunks to reduce condensation, mold, mildew and moisture buildup.
Q. Can HyperVent be cut to size?
Yes. HyperVent can be easily trimmed with scissors or a utility knife to fit virtually any mattress or bunk platform.
Q. How is HyperVent installed?
Place HyperVent with the polymer loops facing down and the breathable fabric facing up, then position your mattress on top.
Q. Is HyperVent only for boats?
No. HyperVent is also ideal for RVs, camper vans, truck campers, motorhomes, cabins and any area where condensation forms beneath mattresses.
Q. Does HyperVent flatten over time?
No. The rigid polymer loop structure is designed to resist compression while maintaining airflow beneath the mattress.
Q. How is HyperVent sold?
HyperVent is sold by the linear foot, allowing you to purchase only the amount needed for your application.
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