LHF Diagonal Square Rectangle Split Mattress

How to order a LHF Diagonal Square Rectangle Split 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 a cover as required.
  5. Review your order and add to cart.

Please check the lead time for all options chosen.

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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 £57.00

Description

Custom LHF Diagonal Square Rectangle Split Mattress

Built for Precision. Designed for Comfort. Made to Fit.

Need a mattress that works with a split bed platform or an awkward cut? Our LHF Diagonal Square Rectangle Split Mattress is crafted to fit layouts with multiple sections, diagonal edges, and custom shapes—especially common in campervans, motorhomes, boats, and caravans.

Just enter your exact measurements, select your preferred foam or memory foam grade, and we’ll create a mattress that slots in perfectly. No bunching, no gaps—just seamless comfort.


Optional Covers in Three Premium Fabric Finishes

Every mattress comes with the option to add a removable, zip-off washable cover—a smart addition for anyone who wants easier cleaning and longer-lasting freshness while on the move.

Choose from three quality fabric options, each built for different lifestyles and comfort preferences:

Cooltech™ Quilted Covers

  • Breathable and luxuriously soft

  • Quilted to promote airflow and regulate heat

  • Ideal for warm sleepers and summer road trips

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

TENCEL™ Botanical Fibre Covers

  • Made from sustainable, plant-based fibres

  • Naturally moisture-wicking and breathable

  • Ultra-soft, hypoallergenic, and eco-conscious

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

Easy Clean Fabric

  • Resists spills, stains, and everyday dirt

  • Wipes down in seconds with minimal effort

  • Perfect for families, pet owners, or full-time van-lifers

    Easy Clean Mattress Fabrics
    Breathable Easy Clean for Added Protection

Designed for Real-World Travel

Road life doesn’t stay spotless. Whether it’s wet coats, sandy feet, or the odd wine spill, our Easy Clean fabric has you covered. It’s low maintenance, hard wearing, and ideal for high-traffic use without sacrificing comfort or style.


Upgrade Your Setup with a TENCEL™ Adjustable Pillow

Next-Level Comfort in a Customisable Design

Pair your mattress with our Shredded Memory Foam Pillow, encased in a naturally breathable TENCEL™ cover. Whether you sleep hot, on your side, or switch positions all night, this pillow adjusts to you.

Its zipped fill system lets you tweak loft and firmness on the fly—so you get tailored support, wherever you lay your head.

Key Features:

✔ Soft, breathable TENCEL™ outer
✔ Hypoallergenic and sustainably made
✔ Shredded memory foam interior – fully adjustable
✔ Machine washable cover for easy cleaning

One pillow. Custom comfort. Anywhere you go.

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

 


Why Foam 4 U?

We’ve spent over three generations helping customers get better sleep on the road and at sea. From tricky bed platforms to tight corners and split mattress layouts, we know how to get the shape—and the comfort—just right. No guesswork. No headaches. Just proper solutions.


Got Questions? We’ve Got Answers.

Not sure how to measure your split layout? Need help choosing a foam type? Just give us a call or drop us a message. Our expert team is always ready to help—with no pressure, no jargon, and no nonsense.

 

 

Our sister website www.thefoamshop.co.uk