Please check the lead time for all options chosen.
Use this option to create a cover to the sizes entered above
This lightweight foam is a great choice for headboards, crafts, costumes, and a variety of general-purpose projects. It’s easy to work with and perfect for decorative or low impact uses. Just a heads-up: we don’t recommend this grade for seating or any application where it’ll need to support weight regularly.
High-quality UK-made, heat-sensitive foam that softens and moulds to your body, offering pressure-relieving comfort. Commonly used in mattresses, toppers, pillows, wheelchair cushions, and medical products.
Most popular High density firm foam. Suitable for seating perfect for sofas, dining chairs, boats, caravans, and camper van seating and mattresses. Best choice for cushions 3–4 inches thick. May be too firm for cushions above 5” in thickness
This product is made by laminating RX38 firm blue foam with a 1″ layer of memory foam. It is essential that the total thickness (C) is greater than 1″. If you order this product at exactly 1″ thick, it will consist of memory foam only
This product is made by laminating RX38 firm blue foam with a 2″ layer of memory foam. It is essential that the total thickness (C) is greater than 2″. If you order this product at exactly 2″ thick, it will consist of memory foam only
50/50 RX39 Firm Foam & Memory Foam Combo A perfect blend of comfort and support — RX39 firm foam provides a solid base, while memory foam contours to the body for pressure relief. Ideal for dog beds, wheelchair seats, and pressure cushions where durability and comfort matter most.
Medium density firm foam. Suitable for seating perfect for sofas, dining chairs, boats, caravans, and camper van seating and mattresses. Best choice for cushions 3–4 inches thick. May be too firm for cushions above 5” in thickness
High density, medium firm foam Reflex 40h is a high-quality foam known for lasting comfort and support. It bounces back quickly and keeps its shape for years—perfect for sofa cushions, armchairs, or even as a mattress.
Medium density, medium firm foam offers instant recovery after use and consistent shape retention over many years. Excellent for deep fill armchair cushions, sofa cushions, or as a mattress of 5” thickness or above
IMPORTANT GRADE INFORMATION This product combines Reflex 40 medium foam with a 1″ layer of memory foam. If you order at 1″ thick, you’ll receive memory foam only — without the Reflex 40 support layer. To ensure proper comfort and support, the total thickness must be greater than 1″.
IMPORTANT GRADE INFORMATION This product combines Reflex 40 medium foam with a 2″ layer of memory foam. If you order at 2″ thick, you’ll receive memory foam only — without the Reflex 40 support layer. To ensure proper comfort and support, the total thickness must be greater than 2″.
Quick drying foam ideal for mattresses or cushions for the marine environment is available cut to size Please call for a quote. Quick Dry reticulated foams are resistant to mild acids and salt water, fuel, organic chemicals, oils and lubricants ,soaps and detergents This foam has been designed to shed water instantly due to it […]
FROM £20.00
Precision Comfort for Cutaway V Berth
If your V-berth mattress has one corner sliced off or the layout’s just a bit awkward — we’ll make sure the mattress isn’t. Our Cutaway V-berth mattresses are made to measure, built to fit snugly into tapered, diagonal or offset berth spaces common on yachts, narrowboats, canal cruisers, and more.
No folding. No trimming. No guesswork. Just a properly cut, one-piece mattress made for your exact layout — with full comfort and no wasted space.
We know how tricky cutaway berths can be. Whether the curve is on the port or starboard side, the base is offset, or you’ve got a diagonal corner chopped for access, we’ll cut the foam to fit it perfectly — no bodging required.
You can choose between:
High-density foam for firm, durable support
Memory foam for pressure relief and a softer feel
Ideal for:
Angled V-berths on yachts or cruisers
Offset cabins with limited floor space
Narrowboats with shaped forward berths
Liveaboards wanting a mattress that actually fits
All mattresses are cut and finished by hand in the UK. You can provide measurements or send us a paper template for 100% precision.
Each mattress can be supplied with a removable, zip-off cover, made to match your custom cutaway shape. Choose from three marine-ready fabrics that are as functional as they are comfortable:
Plant-based, breathable, and moisture-wicking
Naturally cool to the touch
Gentle on sensitive skin
Great for long trips and summer sailing
Tencel natural fibre promote a cooling more comfortable nights sleep
Lightly padded and soft to lie on
Helps regulate body temperature
Fast-drying and great in humid cabins
Our go-to fabric for general-purpose boating
Cooltech covers provide exceptional levels of cooling, Helping to wick away moisture resulting in a more restful nights sleep
Wipeable, washable, and durable
Tough enough for everyday use, pets, and kids
Breathable and low-maintenance
Ideal for boats that get regular action
Whichever you pick, it’ll be cut and sewn to follow your mattress shape exactly — no slippage, no stretching, no flapping corners.
Let’s be honest — most factory-fitted marine mattresses are poor to begin with, and time doesn’t do them any favours. A mattress that’s sagging, musty, or cut to the wrong shape just doesn’t cut it.
A new Cutaway V-berth mattress gives you a better night’s sleep, a cleaner cabin, and a mattress that won’t slide around or leave you hanging off the edge.
Complete your berth setup with our TENCEL™ Shredded Memory Foam Pillow — adjustable, compact, and ideal for marine cabins.
✔ Cooling TENCEL™ cover – breathable and plant-based✔ Zipped fill lets you adjust height and firmness✔ Hypoallergenic and washable✔ Designed for tight spaces and low bunks
One pillow, built for boat life.
We also make replacement cushion covers for boat saloons and cockpit seating — all cut to size and made in your choice of fabric.
👉 Take a look at our custom cushion covers here.
We’ve been cutting custom foam for over three generations, and we’ve made thousands of shaped mattresses for boats across the UK. Whether you’ve got a factory-cut corner or a DIY offset base, we’ll cut it properly, and we’ll get it right first time.
Fully bespoke Cutaway V-berth mattresses
High-density or memory foam options
Three practical fabric covers
Handmade in the UK
Delivered to your home, marina, or mooring
Please visit our sister site www.thefoamshop.co.uk
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