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Made-to-measure replacement mattress cover for Right Hand Front (RHF) diagonal square-rectangle split with rounded corner mattresses, ideal for caravans, campervans, boats and motorhomes. Available in CoolTech, Tencel™ or EasyClean fabrics — all washable, zip-fastened, removable and hand-made in the UK.
All colour option only apply to EasyClean
FROM £109.99
Our RHF Diagonal Square Rectangle Split Rounded Corner replacement mattress cover is engineered for mattresses that combine multiple geometric features — a diagonal cut, square/rectangle section, and a rounded corner on the right front side. These complex mattress shapes are common in custom sleeping layouts where smart use of space and access matters.
Standard covers simply won’t conform to these profiles. That’s why we make every cover to your exact measurements — delivering a precise, tidy fit that restores both appearance and hygiene without the cost of replacing the entire mattress when the internal foam is still in good condition.
Each cover is hand-made in the UK, cut and sewn to your individual specs for a professional finish.
Mattresses with diagonal square/rectangle split profiles and rounded corners need a specialised cover pattern so it can:
Match the diagonal split layout
Align square and rectangular sections
Wrap smoothly around a rounded corner
Fit variations in depth and width precisely
Avoid loose material or bunching
Simply provide your dimensions and we’ll deliver a custom-fitting cover that matches your mattress shape exactly — no sagging, puckering or distortion.
Perfect for:
Caravan beds with multi-angled mattress layouts
Campervan sleeping zones with complex shapes
Boat cabins where custom bed design is standard
Motorhome beds with ergonomic profiles
Choose the fabric that best suits your environment and comfort desires:
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, hard-wearing and ideal for busy use
All covers are:
Removable
Washable
Zip-fastened
Manufactured for long-lasting performance
Caravans, campervans, boats and motorhomes are exposed to limited airflow, condensation and moisture — especially around non-standard bed shapes. A bespoke replacement cover enhances hygiene and helps protect the foam beneath from wear and environmental factors.
If your internal foam has lost support or cushioning, you might 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 because of dampness, condensation or mould, we strongly recommend adding a moisture-reducing mattress spacer underneath your mattress. This improves airflow and reduces moisture build-up.
👉 Add a moisture-reducing mattress spacer (Airmat)
RHF Diagonal Square Rectangle Split Rounded Corner replacement mattress cover
Made to measure to your exact specifications
Tailored for caravans, campervans, boats & motorhomes
Available in cooling, breathable & EasyClean fabrics
Removable, washable, zip-fastened design
Hand-made in the UK
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