RHF Diagonal Cut Off Mattress

How to order an RHF Diagonal Cut Off 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 Cover as required.
  5. Review your order and add to cart.

Please check the lead time for all options chosen.

Shaped Caravan, Campervan , Motorhome & Boat Mattresses
Image is for Illustration Purposes only .
We make mattress to any shape or size

 

Measurements

Measurements

Reference Image

Choose Your Comfort Level

BUDGET MATTRESS FOAM (V28)

This lightweight foam is best suited for occasional-use only,  We wouldn’t recommend it for everyday use or situations where long-term support is essential. Keep in mind—thicker, higher-volume mattresses naturally offer more support than thinner ones, regardless of the foam grade.

Properties
Comfort Level : Not Specified ,
Density: MEDIUM/LOW
Recommendations: Occasional use only !

STANDARD FIRM MATTRESS FOAM RX33/190

This medium-density, firm mattress foam  Ideal for mattresses around 3–4 inches thick, offering reliable support and durability. Just a heads-up—it may feel a bit too firm for those who prefer a softer sleeping surface. Keep in mind—thicker, higher-volume mattresses naturally offer more support than thinner ones, regardless of the foam grade.

Grade
RX33/190
Notional Hardness
190 N
Density
33 kg / m3
Properties
Comfort Level : FIRM
Density: MEDIUM

STANDARD MEDIUM FIRM MATTRESS FOAM RX36/125

Medium-density foam ideal for mattresses 4″ and above. It provides balanced support and comfort, making it a great choice for those seeking a medium-firm sleeping surface. Keep in mind—thicker mattresses offer more support than thinner ones, regardless of foam grade.

Grade
RX36/125
Notional Hardness
125 N
Room Temp. Hardness
125 N
Density
36 kg / m3
Properties
Comfort level: MEDIUM FIRM for mattresses above 4" (`10cm ) in thickness
Density: MEDIUM

ORTHOPAEDIC HIGH DENSITY MATTRESS FOAM RX39/200

Most popular High density firm foam mattresses. Best choice for cushions 3–4 inches thick. May be too firm for cushions above 5” in thickness.  Keep in mind—thicker mattresses offer more support than thinner ones, regardless of foam grade.

Grade
RX39/200
Notional Hardness
200 N
Density
39 kg / m3
Properties
Comfort level ; FIRM
Density; HIGH

COMFORT MEDIUM FIRM HIGH DENSITY MATTRESS FOAM RX41/150

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 mattress. Keep in mind—thicker mattresses offer more support than thinner ones, regardless of foam grade.

Grade
RX41/150
Notional Hardness
150 N
Density
40 kg / m3
Properties
Comfort level : MEDIUM FIRM for mattress over 4"(10cm ) in thickness
Density: HIGH

STANDARD MEMORY FOAM MATTRESS TOPPER VASCO 50

Incorporating Vasco memory foam into your bedding solutions offers enhanced comfort and support, catering to various applications from home to travel.

Properties
Comfort Level: SOFT
Density : HIGH

COOLING REVO MEMORY FOAM MATTRESS TOPPER

This advanced memory foam is designed to provide exceptional comfort and support while keeping you cool throughout the night. Infused with cooling gel technology, it helps regulate temperature, preventing heat buildup and ensuring a restful sleep. Ideal for those who prefer a plush, breathable sleeping surface with enhanced pressure relief.

Properties
Comfort Level : SOFT
Density : HIGH

ORTHO MEMORY FOAM MATTRESS COMBO RX39/200 BASE WITH 1" (2.5CM) MEMORY

Firm V38 base foam bonded to 1″ of Vasco 50 memory foam softens the feel, of the mattress, making what would typically be a firm mattress more comfortable.  Keep in mind—thicker, higher-volume mattresses naturally offer more support than thinner ones, regardless of the foam grade.

Properties
Comfort level : FIRM
Density; HIGH
Minimum Mattress Thickness : Must be over 2" (5cm ) or only memory foam element will be supplied

ORTHO PLUS MEMORY FOAM MATTRESS COMBO RX39/200 BLUE BASE TOPPED WITH 2" (5CM) MEMORY

Firm V38 base foam bonded to 2″ of Vasco 50 memory foam softens the feel, of the mattress, making what would typically be a firm mattress more comfortable.  Keep in mind—thicker, higher-volume mattresses naturally offer more support than thinner ones, regardless of the foam grade.

Properties
Comfort Level; FIRM/MEDIUM
Density; HIGH
Minimum Mattress Thickness : Must be over 2" (5cm ) or only memory foam element will be supplied

COMFORT MEMORY FOAM MATTRESS COMBO RX41/150 BASE TOPPED WITH 1" (2.5CM ) MEMORY

Comfort memory foam mattress combo featuring a supportive Reflex 40 grey base topped with 1″ (2.5cm) of plush memory foam for added pressure relief and comfort.

Grade
RELEX 40 /150
Notional Hardness
150 N
Density
40 kg / m3
Properties
Comfort Level : MEADIUM FIRM
Density: HIGH
Minimum Mattress Thickness : Must be over 1" (2.5cm ) or only memory foam element will be supplied

COMFORT PLUS MEMORY FOAM MATTRESS COMBO RX41/150 BASE TOPPED WITH 2" (5CM ) MEMORY

Comfort Plus Mattress Combo features a supportive Reflex 40 grey foam base topped with 2″ (5cm) of pressure-relieving memory foam.Offers the perfect balance of firm support and plush comfort for a restful night’s sleep.  Ideal for everyday use, guest beds, or custom spaces like campervans and caravans.

Grade
REFLEX 40/150
Notional Hardness
150 N
Density
40 kg / m3
Properties
Comfort Level: MEDIUM FIRM
Density: HIGH
Minimum Mattress Thickness : Must be over 2" (5cm ) or only memory foam element will be supplied

ULTRA FIRM MATTRESS FOAM RG50/230

High density firm foam RG50 is a high-density, firm foam ideal for heavy-duty support. It’s commonly used in seat cushions, gym mats, and other applications where durability and strong support are key. This is the perfect foam for thin Pop-top or Roof-Tent mattresses.

Grade
RG50/230
Notional Hardness
230 N
Density
50 kg / m3
  • FIXED PRICE COVERS
    OPTIONS
    MEMORY FOAM PILLOW
    CUSTOM COVERS & UPHOLSTERY
    Contact us for Pricing

Your Created Product

Measurements

Choose Your Comfort Level

FROM £7.00

Description

Made to measure Caravan, Campervan, Motorhome or Boat mattresses
For illustration purposes only. Your mattress will be cut to the shape and size ordered

Order Your Custom RHF Diagonal Cut Off Mattress – Perfect for Caravans, Campervans, Motorhomes & Boats

Need a custom RHF Diagonal Cut Off mattress for your caravan, campervan, motorhome, or boat? You’re in the right place. Our user-friendly, fully interactive website makes the whole process simple and hassle-free. Just enter your measurements into the provided fields, choose from a wide range of premium foam and memory foam combinations, and let us take care of the rest. Whether you’re after firm support or plush, pressure-relieving comfort, we’ve got the ideal mattress for your mobile lifestyle.

Say Hello to Your New Favourite Pillow

Custom Comfort Meets Cool, Sustainable Sleep
Experience next-level sleep with our Shredded Memory Foam Pillow, wrapped in a breathable, TENCEL™ natural fibre cover. Designed to keep you cool all night, this pillow isn’t just smart—it’s sustainable.

Unlike traditional block foam pillows, our adjustable fill system lets you unzip, fluff, and fine-tune the shredded memory foam to your exact comfort level. Whether you like it soft and low or firm and full—you’re in control.

✔ Cooling & breathable TENCEL™ cover
✔ Eco-conscious and hypoallergenic
✔ Zipped design for adjustable loft
✔ Machine washable cover

One pillow. Endless comfort.
Tailored sleep, every night.

Tencel Memory Foam Pillow
Our memory foam pillows come is a cooling Tencel natural fibre cover. Choose your own comfort level

Each mattress is handcrafted in the UK and specifically tailored to the RHF (Right-Hand Facing) Diagonal Cut Off shape – a popular layout in many modern leisure vehicles and marine cabins where maximizing space is key. A perfect fit isn’t just about looks — it means better sleep, better support, and no annoying overhangs or gaps.

To make life even easier, all our mattresses come with the option of a zip-on, zip-off washable cover, perfect for those who enjoy the great outdoors but still want a clean and hygienic sleep environment. Easy to remove, simple to clean — exactly what you need when you’re always on the move.

 

Our sister website www.thefoamshop.co.uk