Split V Berth

How to order a Split V Berth in 5 simple steps

 

  1. Choose cm’s  mm’s or inches.
  2. Enter Your sizes in the boxes provided.
  3. Choose foam grade from drop down menu.
  4. Add Covers & Sheets as required.
  5. Review your order and add to cart.

Please check the lead time for all options chosen.

 

Measurements

Measurements

Reference Image

Choose your Foam Grade

COVER ONLY (NO FOAM)

Use this option to create a cover to the sizes entered above

BUDGET LIGHTWEIGHT FOAM V28

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.

Grade
V28
Density
28 kg / m3
Properties
Flame Retardant
Not Suitable For Seating

VASCO 50 MEMORY FOAM (WHITE/ YELLOW)

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.

Grade
VASCO 50
Notional Hardness
65 N
Density
50 kg / m3
Properties
Flame Retardant

PREMIUM HIGH FIRM RX39 (BLUE)

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

Grade
RX39/200
Density
39 kg / m3
Properties
Flame Retardant
Highly Recommended Firm Seating & Mattress Foam

RX39 FIRM / MEMORY FOAM 1" (2.5cm) COMBO

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

Grade
RX39 / Memory Combo
Density
40 kg / m3
Properties
Flame Retardant

RX39 FIRM/ MEMORY FOAM (2") COMBO

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

Grade
RX39 / Memory Combo
Density
40 kg / m3
Properties
Flame Retardant

50/50 COMBO RX39 FIRM & MEMORY

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.

Grade
RX39 / Vasco 50
Properties
Flame Retardant

STANDARD FIRM RX33 (BLUE)

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  

Grade
RX33
Notional Hardness
200 N
Density
33 kg / m3
Properties
Flame Retardant
Firm, Medium Density Foam

PREMIUM MEDIUM FIRM REFLEX 40H (GREY)

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.

Grade
REFLEX 40 H
Notional Hardness
150 N
Density
40 kg / m3
Properties
Flame Retardant
Highly Recommended, High Density, Medium Firm, Seating & Mattress Foam

STANDARD MEDIUM FIRM RX36 (BEIGE)

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

Grade
RX36
Notional Hardness
125 N
Density
36 kg / m3
Properties
Flame Retardant

MEDIUM FIRM REFLEX 40 / MEMORY 1" COMBO

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″.

Grade
Reflex 40
Notional Hardness
135 N
Room Temp. Hardness
135 N
Density
40 kg / m3
Properties
Flame Retardant

MEDIUM FIRM REFLEX 40 / 2" MEMORY COMBO

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″.

Grade
Reflex 40 H / v50
Notional Hardness
135 N
Room Temp. Hardness
135 N
Density
36 kg / m3
Properties
Flame Retardant

30PPI RETICULATED FOAM

A durable, open-cell foam that resists water, humidity, and chemicals — ideal for outdoor seating and air/water filtration. Its breathable structure also makes it great for humidifiers, ventilation, and industrial filtration systems.

Properties
Not Fire Retardant (None F/R)
Perfect for Outdoor Seating
  • FIXED PRICE COVERS
    OPTIONS
    MEMORY FOAM PILLOW
    CUSTOM COVERS & UPHOLSTERY
    Contact us for Pricing

Your Created Product

Measurements

Choose your Foam Grade

FROM £60.00

Description

Horizontally Split V-Berth Mattress

Smart Sleep Solutions for Storage-Savvy Boat Cabins

Need to access storage under your berth without lifting the whole mattress? We’ve got you covered. Our Horizontally Split V-berth mattresses are made in two perfectly matched sections, cut across the width of the mattress — ideal for boat cabins where flexibility matters.

Built for yachts, narrowboats, canal cruisers, and more, this design gives you full-size comfort with easier day-to-day access. No wrestling with a bulky one-piece. No awkward folding. Just a clean, smart solution that works.


Built to Fit. Cut to Last.

Each mattress is handcrafted here in the UK and shaped to suit your berth layout — including curved bows, angled sides, and unusual proportions. You can supply measurements or send us a template if the shape’s a bit more complicated.

Choose between:

  • High-density foam – firm, supportive, long-lasting

  • Memory foam – pressure-relieving and body-contouring

Ideal for:

  • V-berths with under-bed lockers or hatches

  • Boats with limited lift-up space

  • Cabins where one side of the bed gets more use

  • Sailors who hate faffing with heavy foam


Three Cover Options – Each One Boat-Ready

Every mattress comes with the option of a removable, zip-off washable cover, tailored to the exact split shape. Choose from three hard-wearing, breathable fabrics — all proven in marine environments:

TENCEL™ Botanical Fibre

  • Naturally breathable and moisture-wicking

  • Made from sustainable wood pulp

  • Cooling, soft, and hypoallergenic

  • A solid choice for warm cabins and eco-conscious buyers

    Mattress with Tencel Cover
    Tencel natural fibre promote a cooling more comfortable nights sleep

Cooltech™ Quilted Polyester

  • Lightly padded and breathable

  • Helps regulate temperature overnight

  • Great for summer cruising and enclosed cabins

  • Quick-drying and easy to care for

    Cooltech mattress
    Cooltech covers provide exceptional levels of cooling, Helping to wick away moisture resulting in a more restful nights sleep

Easy Clean Fabric

  • Wipeable, washable, and tough on wear

  • Stain-resistant and breathable

  • Ideal for boats with pets, kids, or regular turnover

  • Perfect for no-fuss maintenance

All covers are made to measure and follow your split layout precisely — so both halves fit snugly, even when in use separately.

Easy Clean Mattress Fabrics
Breathable Easy Clean for Added Protection

Why Choose a Horizontally Split Mattress?

Sometimes, a full one-piece just doesn’t work. If you’ve got under-berth storage, or you want the flexibility to remove one half of your mattress for ventilation or maintenance, a horizontally split V-berth mattress is the smart choice.

You still get a single sleeping surface when the halves are together — but with more access and easier handling. No lifting gymnastics. No pulling apart the whole berth just to get to your kit.


Top It Off with the Perfect Pillow

Complete your berth setup with our TENCEL™ Shredded Memory Foam Pillow — breathable, adjustable, and compact enough for tight marine cabins.

✔ Cooling TENCEL™ cover
✔ Zipped shredded fill — adjust to suit your comfort
✔ Hypoallergenic and skin-safe
✔ Machine washable for easy care

Designed for comfort. Built for boats.

Tencel Pillow
Our Cooling Tencel Pillows are fully adjustable and can be adapted your individual comfort requirements

Need Replacement Cushion Covers Too?

We also make custom cushion covers for interior and exterior boat seating — including saloon benches and cockpit pads. All covers are made to order in your choice of TENCEL™, Cooltech™, or Easy Clean fabrics.

👉 View our custom boat cushion covers here.


Why Foam 4 U?

We’ve been cutting marine foam and mattresses for over three generations. From oddly shaped bunks to modular split berths, we know how to get the fit right — no bodging, no trimming, just proper comfort made for your space.

  • Fully custom horizontally split V-berth mattresses

  • High-density or memory foam

  • Made-to-measure fabric covers in three marine-ready options

  • Handmade in the UK

  • Delivered to your marina, home, or mooring

 

 

Please visit our sister site www.thefoamshop.co.uk