Three Part V-Berth Mattress

How to order a Three Part V-Berth Mattress 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.
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Measurements

Measurements

Reference Image

Choose 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

SF40 STANDARD 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
SFV40
Notional Hardness
60 N
Density
40 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

GELFEX ORTHO FIRM

GelFlex Ortho Firm combines a 2″ (5 cm) layer of GelFlex gel-infused memory foam for cooling comfort and pressure relief.with our firmest high-density RX33/190 foam base for maximum support and stability assuming orders over 5cm 🔴 Firm – Maximum support for back & stomach sleepers

Grade
Gelflex + 33/190

GELFLEX MEDIUM

GelFlex Medium-Firm combines a 2″ (5 cm) layer of GelFlex gel-infused memory foam for cooling comfort and pressure relief.  & high-density medium-firm 41/150 foam base for stronger support and improved weight distribution, assuming orders over 5cm thickness 🔵 Medium (Most Popular) – Balanced support for back sleepers & couples

Grade
Gelflex + 41/150

GELFLEX SOFT

GelFlex Soft combines a 2″ (5 cm) layer of GelFlex gel-infused memory foam for cooling comfort and pressure reliefwith a high-density medium-soft RX39/120 foam base for stable, long-lasting support, assuming orders over 5cm thickness 🟢 Soft – Plush, contouring comfort for side sleepers  

Grade
Gelflex + 39/120
  • Tencel mattress with breathable cover and cooling design Tencel mattress with a naturally breathable cover designed to help regulate temperature and improve sleep comfort.

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Measurements

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FROM £132.00

Description

3 Part V Berth Mattress – Made to Measure for Boats & Yachts

This 3 part V berth mattress is made to measure for your exact layout, designed for boat and yacht cabins where access, flexibility and fit all matter.

Unlike a single-piece mattress, a 3 part configuration allows the berth to function as both a sleeping area and a usable seating or storage space.

Each section is cut to your exact measurements, ensuring a precise fit within your V berth with clean alignment between all parts.


📏 When to Choose a 3 Part V Berth Mattress

A 3 part V berth mattress is the right option if your layout needs more flexibility than a standard one or two piece setup.

It is commonly used where:

  • The berth converts between seating and sleeping
  • Multiple sections need to be lifted or moved
  • Access to storage is required beneath the berth
  • The space is used regularly during the day

If your berth is fixed and does not need to move, a simpler configuration may be more suitable.


⚠️ When This Is NOT the Right Option

This option may not be suitable if:

  • You want a single continuous sleeping surface
  • Your berth does not need to be lifted or reconfigured
  • Simplicity is more important than flexibility

In these cases, a 1 part or 2 part V berth mattress will usually be a better fit.


🔄 Built for Practical Onboard Use

A 3 part mattress allows each section to be handled independently, making it easier to:

  • Convert the space between seating and sleeping
  • Access storage areas beneath the berth
  • Remove or reposition sections when needed

This makes it ideal for cabins where space needs to work harder.


🧩 Made to Measure for Your Exact Berth

Every 3 part V berth mattress is cut to your measurements.

You can provide:

  • Individual section sizes
  • Full berth dimensions
  • Templates if required

This ensures all sections align correctly and fit cleanly within your cabin.


🧠 Foam Options

The right foam choice depends on how the berth is used.

High Density Reflex Foam
Provides firm, durable support across all sections.

Memory Foam (SFV50 Premium Grade)
Adds comfort and pressure relief for sleeping.

GelFlex Foam
Helps regulate temperature and improve airflow in enclosed cabins.

All options are available in multiple firmness levels.


🛏️ Covers & Finishing

All 3 part V berth mattresses are supplied with removable covers, designed to fit each section correctly while maintaining a clean, consistent finish across the full berth.


💧 Managing Condensation

For improved airflow and moisture control, we recommend using an Airmat spacer mesh beneath the mattress.

This helps reduce condensation and protect the foam over time.


✂️ Made to Measure V Berth Mattresses

No two V berths are the same — so we don’t force standard sizes.

We manufacture:


🇬🇧 Made to Measure in the UK

Every mattress is manufactured in the UK and built to your exact specification, ensuring a precise fit and long-lasting performance.


📞 Need Help?

If you’re unsure whether a 3 part configuration is right for your berth, get in touch before ordering.

We’ll help you choose the right setup for your space.