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Refresh uniquely shaped beds with a made-to-measure RHF Twin Diagonal Cutaway replacement mattress cover — tailored to fit the dual diagonal cut design found in caravans, campervans, boats and motorhomes. Choose from CoolTech, Tencel™ or EasyClean fabrics — all washable, zip-fastened, removable, and hand-made in the UK.
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All colour option only apply to EasyClean
FROM £69.99
Our RHF Twin Diagonal Cutaway replacement mattress cover is custom-made to fit mattresses that feature two diagonal cutaway corners on the right front side — a layout often found in space-optimised sleeping areas of leisure vehicles and marine berths. It’s the smart, cost-effective way to refresh your mattress without replacing the entire foam when the interior support is still solid.
Each cover is hand-made in the UK and stitched to your exact measurements for a snug, quality finish that sits cleanly on your existing mattress foam.
Mattresses with twin diagonal cutaways need a bespoke pattern to ensure the cover:
Matches both diagonal cut profiles
Wraps smoothly around angled edges
Fits varying depths and widths
Avoids bunching or loose fabric
Just provide your measurements, and we’ll produce a custom replacement cover that fits precisely — no sagging, no misalignment, no compromise.
Perfect for:
Caravan beds with dual diagonal cutaway sections
Campervan sleeping areas with complex shapes
Boat cabins with tailored mattress layouts
Motorhome beds with asymmetrical footprints
Choose the fabric that suits your environment and comfort needs:
CoolTech Cooling Fabric – helps manage temperature and reduce heat build-up
Tencel™ Mattress Fabric – breathable, moisture-wicking and naturally comfortable
EasyClean Mattress Fabric – wipe-clean and hard-wearing for everyday use
All covers are:
Removable
Washable
Zip-fastened
Built for long-term performance
Replacement mattress covers are especially useful in caravans, campervans, boats and motorhomes where humidity, limited ventilation and unique mattress shapes are common. A tailored cover improves hygiene and helps protect the foam beneath.
If your existing mattress foam has lost support or comfort, you might prefer a full mattress replacement instead of a new cover.
👉 View our made-to-measure mattresses for caravans & campervans
(Also suitable for boats and other leisure vehicles.)
If you’re replacing the cover because of damp, condensation or mould, adding a moisture-reducing mattress spacer beneath your mattress can significantly improve airflow and reduce moisture build-up.
👉 Add a moisture-reducing mattress spacer (Airmat)
RHF Twin Diagonal Cutaway replacement mattress cover
Made to measure to your exact dimensions
Tailored for caravans, campervans, boats & motorhomes
Choice of cooling, breathable & EasyClean fabrics
Removable, washable, zip-fastened design
Hand-made in the UK
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