Get 10% on orders over £125. Most orders for foam cut to size are shipped next day Dismiss
Made-to-measure replacement cover for mattresses with a Right Hand Front (RHF) diagonal cut-off with rounded corner shape, perfect for caravans, campervans, boats and motorhomes. Choose from CoolTech, Tencel™ or EasyClean fabrics — all washable, zip-fastened, removable, and hand-made in the UK.
All colour option only apply to EasyClean
FROM £69.99
Our RHF Diagonal Cut-Off Rounded Corner replacement mattress cover is designed for uniquely shaped mattresses that combine a diagonal cut-away and a rounded corner on the right hand front side — a profile often used in custom sleeping spaces to optimise access and comfort.
Standard covers won’t sit neatly on these complex shapes, which is why we create each cover to your exact measurements. This delivers a snug, professional fit that restores both appearance and hygiene without the expense of a full mattress replacement — as long as the internal foam is still supportive.
Each cover is hand-made in the UK and tailored to your supplied dimensions for a precision finish.
Mattresses with a rounded diagonal cut-off require careful construction so the cover can:
Accommodate the diagonal profile
Wrap smoothly around a rounded corner
Maintain tight, tidy lines without loose fabric
Match variations in depth and width
With measurements from you, we deliver a custom replacement cover that fits perfectly — no bunching, sagging, or misalignment.
Perfect for:
Caravan beds with blended shapes
Campervan sleeping areas with ergonomic designs
Boat cabins with bespoke mattress footprints
Motorhomes with non-standard mattress shapes
Choose from our suite of performance fabrics designed for real-world use:
CoolTech Cooling Fabric – helps regulate temperature and reduce heat build-up
Tencel™ Mattress Fabric – breathable, moisture-wicking, and naturally comfortable
EasyClean Mattress Fabric – wipe-clean, durable and practical for busy interiors
All covers are:
Removable
Washable
Zip-fastened
Built for long-lasting performance
Caravans, campervans, boats and motorhomes often experience higher humidity, limited airflow and condensation — especially around non-standard mattress shapes. A well-fitting replacement cover improves hygiene and helps protect the foam beneath from environmental wear.
If your internal foam has lost support or cushioning, you may prefer to replace the mattress rather than just the cover.
👉 View our made-to-measure mattresses for caravans & campervans
(Also suitable for boats and other leisure vehicles.)
If you’re replacing the cover due to damp, condensation or mould, we strongly recommend adding a moisture-reducing mattress spacer beneath your mattress to improve airflow and reduce moisture build-up.
👉 Add a moisture-reducing mattress spacer (Airmat)
RHF Diagonal Cut-Off Rounded Corner replacement mattress cover
Made to measure to your exact specifications
Suited for caravans, campervans, boats & motorhomes
Choice of cooling, breathable & EasyClean fabrics
Removable, washable, zip-fastened design
Hand-made in the UK
www.thefoamshop.co.uk
© 2026 Foam 4 U | Sitemap | Privacy Policy