Replacement Island Caravan Mattresses

Whether your original island caravan mattress is looking a little worse for wear, or your motorhome mattress doesn’t suit your needs, finding a replacement island-shaped mattress has previously been a struggle. Custom Size Beds can manufacturer replacement island mattresses to create comfortable caravan mattresses or motorhome mattresses to perfectly compliment your comfort requirements. An island bed mattress traditionally starts out rectangular and has a sweeping curve at the foot end saving valuable space in small areas. All our mattresses are made to order in the UK allowing you to have your new island mattress tailored to meet your exact needs just like your odd size bed at home. We make it easy to get the perfect night sleep with our simple ordering process.
“Ordered on Wednesday and delivered on Friday. That’s what I call service. The measurements were spot on”
Mike Moorse
“A quick message to say that the mattress is excellent as was the whole service- helpful, simple and efficient”
Annie Freud
“It made our return journey back to Spain a lot more comfortable and relaxing! Money well spent – thank you!”
David Wood
“First chance to try the new mattress, what a difference! Super comfy and two great nights sleep. Thank you”
Des Davis
“The mattress fits well, its comfortable, keeps us cool while we sleep and no roll together. Just as advertised”
Tracey Rowbottom
“Very happy with the result, its comfortable and exactly as ordered. Could not be happier with the product”
Kyla Egan
“Contacted Custom Size Beds, gave them the measurements, and within days received a perfect fit mattress”
Paul Parton
“The cool memory foam is excellent with no overheating in the summer even when temperature is over 30°C”
Adrian Addison
“I got the extra firm Cool mattress. It’s firm, but not too hard and super comfy. My back problems are gone!”
Jennifer Volk

single camper van mattress custom made to fit

Our Premium Memory Foam Mattress cut and shaped to fit the island shape bed frame on this touring caravan

a replacement island shape memory foam mattress for caravans

The curved foot end of this caravan mattresses provides valuable space to move easily around the bed

Custom made caravan mattress with diagonal corner cut away

One of our island shape mattresses shaped to fit the curved bed frame of this Roller Team motorhome

Caravan Mattress made to measure

How to order your island caravan bed

Ordering a replacement island caravan mattress is simple and easy. Follow our 3 step process and you’ll soon be enjoying a comfortable slumber on your new island mattress.

1. If you are ordering a custom mattress simply measure the dimensions as shown in the diagram.
2. With these dimensions, place an order through our website.
3. Once we’ve received your order we will email over a scale production plan so you can check your new mattress will fit your island bed before we get started.


Sleep in luxury wherever you are

It’s not uncommon for caravan and motorhome owners to complain that their mattress causes them discomfort. This can be far from ideal when you’re exhausted after your holiday ventures and desperately need a restful sleep. We’re committed to challenging this myth and as a result, we only make our island mattress from high quality, domestic grade materials. This ensures your new island mattress feels just as comfortable as your bed at home so you wake up fresh and prepared for your next adventure. We can even offer custom size fitted sheets for your new island mattress. Those wanting premium quality without the premium price tag can opt for our luxury Premium memory foam mattress. Those wanting the ultimate in sleep technology can opt for our ComfiCel Gel or Cool memory foam mattresses for the very best nights sleep!

bespoke mattress for the bed in a touring camper van


1,000’s of happy customers

A quick message to say that the mattress is excellent as was the whole service- helpful, simple and efficient

Annie Freud

It made our return journey back to Spain a lot more comfortable and relaxing! Money well spent – thank you!

David Wood

First chance to try the new mattress, what a difference! Super comfy and two great nights sleep. Thank you

Des Davis

The mattress fits well, is very comfortable, keeps us cool while we sleep, with no roll together. Just as advertised.

Tracey Rowbottom

Just had first sleep on our excellent new mattress. Delighted not to have a sore back this morning!

Peter Garrow

Very happy with result, it is comfortable and exactly as described and as ordered. Couldn’t be happier with the product.

Kyla Egan

Contacted Custom Size Beds, gave them the measurements, and within days received a perfect fit Gel foam mattress.

Paul Parton

It fits perfectly and is extremely comfortable, my only regret is we should have ordered one years ago!

Jo Eastwood

The cool memory foam is excellent with no overheating in summer even when temperatures are over 30°C

Adrian Addison

Ordered on Wednesday and delivered on Friday. That’s what I call service. And the measurements were spot on

Mike Moorse

The quality is spot on and it fits like a glove. Would not hesitate in dealing with this company again.

Pat Harvey

Amazing service. Mattress fits perfectly and is super comfy – had the best nights sleep in a long time.

Broghan Nelson

I got the ComfiCel Cool mattress with extra firmness. It’s firm, but not hard and is super comfy. My back problems are gone!

Jennifer Volk

Great customer service and the mattress was delivered very quickly. It fitted into our motorhome perfectly

Hazel Brend

This is an excellent company, first class advice and no fuss delivery all at a very reasonable price.

Carolyn Blackham
South Yorkshire

I cannot fault the product or the service I received from Custom Sized Beds! The new mattress is a perfect fit

Pete Jones
West Midlands

Our mattress was delivered in a matter of days. Its so comfortable, we would recommend this company to anyone

Steve French

I ordered this for a custom made bed deck for my son. It arrived when they said and its super comfortable


Every member of the team that I spoke to at Custom Beds was really helpful. Its such an efficient system

Caroline Sale

I cannot state how great this company is, from start to finish they gave me exactly what I wanted.

Jan Coles

All in all a great service and a fantastic item supplied by nice people at a reasonable price.

Milton Keynes
Call now for helpful advice from one of our experts

01634 926123 – Monday to Friday, 9AM to 5PM

Reasons to ditch springs

We’re experts when it comes to island mattresses, so we’re always asked what’s best, new age memory foam, or traditional springs? Given the huge advances achieved with foam technology over the past decade, it’s no surprise that we’d always pick a memory foam island mattress. Sprung mattresses can lose up to 16% of their support in the 1st year alone, not to mention that each spring pushes back into your body with equal force meaning pressure points are inevitable. A quality memory foam mattress on the other hand distributes body weight evenly and reduces pressure by up to 80%. Memory foam also offers no motion transfer or partner roll together helping you get a better nights sleep.

When it comes to custom sizes for your island mattress, memory foam wins again, with springs becoming somewhat problematic. You can’t have half a spring, so the size of your mattress has to be made in increments based on the size of each spring – not to mention that the added complexity results in higher production costs. Memory foam on the other hand can be cut to any size, and a simpler production process gives better value for money.

Memory Foam Mattress For island beds

Request further information

Want to learn more? Use the contact form below to get in touch with our bed experts. Whatever shape or size of mattress you’re looking for, we’re on hand to offer advice for all your mattress needs.

At Custom Size Beds, we take privacy seriously and your details will never be sold to a 3rd party.


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    Overall width, length & thickness (if known)

    Type your message or any questions below. If you have dimensions we will be happy to send you back some quotes and a scale production drawing

    (Optional) Upload a photo or diagram - Alternatively you can email your attachments to

    At Custom Size Beds we take your privacy seriously - Click here to read our privacy policy

    Made to measure caravan mattresses

    Our mattresses offer comfort on the go, including perfect beds for boats, caravans, campervan mattresses, motorhomes, vans, trailers and more. Enjoying the great outdoors doesn’t have to mean an uncomfortable sleep, as our materials are sourced from quality suppliers with your enjoyment in mind.

    Island mattresses can be an ideal solution for tight spaces. They’re also quite difficult to source, which can leave you struggling with an unfit mattress for your environment. Custom Size Beds eliminate this problem by ensuring your mattress is exactly what you’ve asked for. Customers in need of split and fold mattresses for extra storage space are also accommodated by us.

    We understand the difference a great night’s sleep can make. That’s why we offer more than just custom size mattresses. Our outstanding sales professionals are available before and after your mattress has been made for friendly advice that you can trust. From our wealth of experience, we’re experts at what we do and greatly enjoy providing you and your family with an unforgettable night’s sleep.

    We aim for our beds to be practical and convenient. To keep this ethos in mind, we keep our production methods this way too. Our cutting edge operations make each curve of your island bed caravan exact and symmetrical using computer-aided technology. To protect from dirt and debris, a luxury quilted cover is placed on your new mattress for safe keeping.

    Within a day of being manufactured, we get your new island caravan mattress straight to you. Each mattress arrives vacuum packed and rolled, ready to fit through small caravan doors should it need to. With minimal effort, your mattress is ready to use. All that’s required is the custom mattress to be unrolled, open the packaging and watch and your mattress expands readily for use. In around 5-6 hours, all steps will be completed to spend your first night on your brand new island mattress.