What shape is your bed box?
Here you will find a custom motorhome mattress or caravan mattress for the fixed bed in your vehicle, sorted by the shape of the sleeping surface. Each shape has its own configurator, where you choose the measurements, core and cover. We make a camper mattress just as we make one for a caravan or motorhome, including for self-builds: which mattresses a camper needs is decided only by the shape of the sleeping surface. For the patio and boat there is the outdoor mattress, and for folding away there are the folding mattresses and foldable mattresses. All categories are listed under mattresses made to measure.
Rectangular
For single beds, transverse beds and seating areas whose sleeping surface has straight edges. We make the rectangular motorhome mattress in any length and width.
Angled sides and trapezoid
For when one side of the bed runs at an angle, for example along a wall that narrows towards the rear, or at a wheel arch. You can choose one angled side, angled side on the left, two angled sides and the side trapezoid.
Angled corners
A corner cut at an angle makes room at the entrance, a cupboard door or a wall. There are the angled corner section, the angled corner cutout, two angled corners, two angled corners diagonal, two angled corner cutouts, three angled corners and four angled corners.
Rounded corners
For beds with rounded corners, as found in an over-cab bed or at the foot of a French bed. Available with one rounded corner, two rounded corners, two rounded corners diagonal, three rounded corners and four rounded corners.
Right-angled corner cutouts
For when a cupboard, a step or a fitting takes a rectangle out of the corner. You can choose one corner cutout, two corner cutouts, two corner cutouts on the side, two corner cutouts diagonal, three corner cutouts and four corner cutouts.
Cutouts in the edge
A rectangular cutout in the middle of one side, for example for a staircase, a passage or a service hatch. There are one cutout, two cutouts, three cutouts and four cutouts.
How to measure a caravan mattress correctly
Which mattress a caravan owner needs is decided by the bed box, not by the vehicle model. Measure the sleeping surface yourself, ideally with a flexible tape measure. General tips for special shapes with diagonals and radii are in the measuring guide for furniture cushions.
Length, width and height
Measure length and width at several points, not just along one edge. If the values differ, use the smaller one. Also note the height of the bed box rim, because it determines the right thickness for the mattress.
Sketch special shapes
Draw the angles, rounded corners and cutouts and write the measurements next to each edge. For a curve the radius helps, for an angled cut the length of both legs. For very awkward surfaces a template made from cardboard or paper is enough.
Over-cab bed, rear bed, French bed
For an over-cab bed mattress above the cab, the distance to the ceiling also matters, so you can still sit up. In a rear bed, a wheel arch or wall lining often takes away a corner. A French bed usually has one corner at the foot end rounded or angled.
Looking by model?
Many people search by vehicle, for example for a Hobby caravan mattress. We do not keep a list by model, because bed shapes differ with the layout and the year of build. The only sure fit is what you have measured yourself.
Allow for tolerances
Foam and fabric give a little, and textiles are never accurate to the millimetre. How much deviation is normal for a made-to-measure item is explained on the page tolerances for made-to-measure items.
What goes into our mattresses for caravans
Every mattress is made only after you order it: cut the foam, wrap it, sew the cover. What the density of a foam tells you is explained in the guide to upholstery filling.
Four cores to choose from
In the configurator you choose between soft, firm, a firm core with a soft surface, and the reversible mattress with one soft and one firm side. The firm core is foam with a density of RG 40/50, comparable to firmness grade H3.
0.5 cm thermal fleece around the core
Around the foam core sits a fleece wrap 0.5 cm thick. It protects the foam, evens out the edges and keeps the cover sitting smooth, even at rounded corners and cutouts.
Cover for indoors or outdoors
For indoor use we sew covers in corduroy or velvet. The outdoor cover in Agora fabric is solution dyed acrylic, water and dirt repellent, with a 5-year guarantee. You will find the colours in the Agora collections. The mattress can also be used without a bed sheet; if you prefer to sleep on cotton, put a sheet over it.
Removable, washable cover
Every cover has a sewn-in zip. You can pull it off. How you wash it depends on the fabric - Agora at no more than 30 °C with mild soap, velvet and 25 mm cord by hand only up to 30 °C, 5 mm cord in the machine up to 40 °C. See care and cleaning for details.
10 to 15 working days
Because every made-to-measure mattress is sewn only after the order, production takes 10 to 15 working days, depending on the season. Delivery is free of charge.
Moisture and ventilation in a motorhome
In a caravan or motorhome you sleep in a small space, and the outer walls are cold. Breath and body heat bring moisture into the mattress, and it has to get out again. A few simple steps prevent damp patches and mould. More ideas for the road are collected in the motorhome camping hacks.
Air under the mattress
If the foam lies directly on a cold, closed board, moisture condenses there. A slatted base or an air-permeable underlay provides ventilation from below. It does little good that a cover counts as breathable if the underside gets no air.
Air it during the day
Now and then stand the mattress on its edge or fold it open, especially after cold nights. In winter storage it stays dry if you take it out of the vehicle, or at least stand it upright.
Water repellent, not waterproof
The Agora cover makes splashes bead off, but it is not waterproof. If something does get through, pull off the cover, wash it and let the foam core air dry before you put the cover back on.
Frequently Asked Questions
Sources
- Measuring guide for furniture cushions
- Tolerances for made-to-measure items
- What is upholstery filling
- Care and cleaning
Last reviewed: 09.10.2026 · Reviewer: Germes-Team
Bed box measured? Then all that is missing is the fabric
Order free fabric samples first, or send us your sketch if the shape does not fit any template.