Ordering a custom mattress is an excellent solution when a standard mattress size does not fit your bed frame properly. Custom-made beds, luxury furniture, antique frames, children’s beds, RV-style sleeping spaces, and specially designed bedroom furniture can all require unique mattress dimensions.
However, getting a custom mattress right starts with one important step: measuring your bed accurately.
Even a small measurement error can result in unwanted gaps, a mattress that feels too tight inside the frame, or difficulty fitting bedding. This guide from Top Sleep explains how to measure your bed correctly before ordering a custom mattress in the UAE.
Why Accurate Measurements Matter for a Custom Mattress
Unlike standard mattresses, a custom mattress is manufactured according to specific dimensions. Once you provide the length, width, and required thickness, those measurements become an important part of the manufacturing specifications.
Accurate measurements help ensure:
- A proper fit inside the bed frame
- Comfortable installation and removal
- Fewer unwanted gaps around the mattress
- Better compatibility with your bed design
- Appropriate mattress height
- A cleaner and more professional bedroom appearance
Top Sleep provides customized mattress solutions in the UAE, including mattresses for non-standard bed sizes, custom furniture, homes, hotels, apartments, villas, and special bedding projects.
What You Need Before Measuring
You do not need professional measuring equipment. A few simple items are normally enough:
- A sturdy measuring tape
- Pen and paper or your phone for recording dimensions
- A straight ruler for smaller areas
- Another person to help with particularly large bed frames
Whenever possible, use a measuring tape that displays centimeters and millimeters. More precise measurements make communicating your custom requirements easier.
Step 1: Remove the Existing Mattress
Do not simply measure your old mattress and assume those dimensions represent the bed.
Mattresses can change slightly over years of use due to compression, wear, or changes in their edges. Your existing mattress might also have been slightly too large or too small from the beginning.
Instead, remove the mattress completely and measure the actual internal sleeping area of the bed frame.
This gives you a more reliable starting point for your new custom mattress.
Step 2: Measure the Internal Width of the Bed
Measure horizontally from the inside edge on one side of the bed frame to the inside edge on the opposite side.
Take measurements at three points:
- Near the head of the bed
- Across the middle
- Near the foot of the bed
Why three measurements?
Custom or handmade bed frames are not always perfectly square. There can be small differences between the top, middle, and bottom.
Record all three measurements rather than assuming they are identical.
For example:
Head: 181 cm
Middle: 180.5 cm
Foot: 180 cm
If you find differences like these, provide them when discussing your custom mattress specifications rather than deciding on a dimension yourself.
Step 3: Measure the Internal Length
Next, measure from the inside of the headboard or head-end frame to the inside edge at the foot of the bed.
Again, check more than one position.
Measure the:
- Left side
- Center
- Right side
For example, you might record:
Left: 201 cm
Center: 200.5 cm
Right: 201 cm
Multiple measurements are particularly useful with custom furniture because the frame may have slight variations.
Step 4: Measure the Required Mattress Thickness
Length and width determine whether the mattress fits inside the bed, but mattress thickness determines how it sits relative to the frame and headboard.
Measure from the mattress-supporting surface upward and consider where you would like the top of the mattress to sit.
Think about:
- Height of the bed frame
- Depth of recessed mattress area
- Headboard design
- Bedside table height
- Desired overall sleeping height
- Mattress protector and bedding
Top Sleep’s UAE manufacturing options include customization for mattress size, comfort level, and height/thickness, making this measurement particularly useful when discussing your order.
Step 5: Measure the Mattress Recess
Some beds have a recessed area where the mattress sits partially inside the frame.
Measure the distance between the supporting base and the upper edge of the side rails.
For example, if the recess is very deep and you select a thin mattress, the mattress may sit too low inside the frame. Conversely, an especially thick mattress can hide too much of a decorative headboard.
The ideal thickness therefore depends on both comfort and bed construction.
Step 6: Check the Corners
This step is frequently overlooked.
Not every custom bed has perfectly square 90-degree corners. Some frames feature:
- Rounded corners
- Curved edges
- Upholstered corners
- Decorative wooden structures
- Angled corners
- Irregular shapes
If your bed has an unusual shape, do not provide only the maximum length and width.
Photographs, diagrams, templates, or additional measurements may be useful when discussing the manufacturing requirements.
Step 7: Check for Obstacles Inside the Frame
Look carefully around the entire mattress area.
Custom bed frames can contain structural or decorative elements such as:
- Corner brackets
- Upholstered sections
- Support posts
- Wooden blocks
- Hinges
- Storage-bed mechanisms
- Metal hardware
These components can reduce the usable mattress space.
Measure the narrowest usable areas and communicate any unusual construction before confirming your mattress.
Step 8: Measure Twice Before Ordering
One of the simplest rules for custom mattress ordering is:
Measure twice and confirm once.
After recording your first measurements, repeat the entire process.
Check:
Width × Length × Thickness
For example:
180 cm × 200 cm × 25 cm
Keep the dimensions in the same order whenever communicating them to avoid confusion.
Should You Leave a Gap Around a Custom Mattress?
A mattress generally should not be so tight that it has to be forced into the frame. At the same time, excessive space around it can look unattractive and allow the mattress to move.
The appropriate manufacturing allowance can depend on the bed construction, upholstery, mattress design, and shape.
Instead of automatically subtracting a few centimeters yourself, provide the actual internal measurements of the bed to the mattress manufacturer and discuss the appropriate finished dimensions.
This is especially important for unusually shaped or upholstered beds.
Do Not Confuse Bed Size With Mattress Size
Terms such as single, double, queen, king, and super king can be useful when shopping for standard mattresses, but they should not replace exact measurements when ordering a custom product.
If your bed measures 183 × 203 cm, for example, saying only “king size” may not provide enough information for a made-to-measure order.
Always provide measurements in centimeters.
If you are shopping for a standard single bed instead, read Top Sleep’s guide to choosing the right mattress for a single bed for additional guidance.
Consider Comfort After Confirming the Size
Getting the dimensions right solves only one part of the custom mattress decision.
You should also consider:
- Sleeping position
- Body weight
- Preferred firmness
- Pressure relief
- Spinal support
- Mattress material
- Temperature and breathability
- Whether one or two people will use the mattress
Top Sleep offers custom mattress options that can include different firmness levels, materials, support requirements, and dual-comfort configurations for couples.
If you are unsure about firmness, our guide to the best mattress for different sleeping positions explains the different requirements of side, back, stomach, and combination sleepers.
Choose Materials Suitable for the UAE Climate
Size and comfort are important, but UAE residents should also consider temperature.
Some people naturally sleep hotter than others, and mattress construction can affect airflow and heat retention.
When customizing your mattress, consider breathable materials and appropriate comfort layers. You can learn more in our complete guide to cooling mattresses for UAE weather.
You can also compare two popular mattress constructions in our Memory Foam vs Pocket Spring Mattress guide.
Common Bed Measuring Mistakes to Avoid
Before submitting your measurements, watch out for these common mistakes:
Measuring Only the Existing Mattress
An older mattress may not represent the exact internal dimensions of your bed frame.
Taking Only One Measurement
Measure width and length at several points, particularly with custom, upholstered, or handmade beds.
Measuring the Outside of the Bed
The external dimensions include the frame itself. You usually need the usable internal mattress space.
Ignoring Mattress Height
A mattress can fit perfectly in width and length but still look wrong if it sits too high or too low.
Rounding Measurements Too Much
If you measure 181.5 cm, do not automatically change it to 180 or 182 cm. Record the actual figure and discuss it with the manufacturer.
Forgetting Irregular Corners
Curves, angles, upholstery, and structural components should be identified before manufacturing begins.
Simple Custom Mattress Measurement Checklist
Before placing your order, confirm that you have recorded:
- Internal width at several points
- Internal length at several points
- Desired mattress thickness
- Bed-frame recess depth
- Corner shape
- Any internal obstructions
- Photographs or diagrams for unusual frames
- Preferred mattress firmness
- Preferred mattress construction/material
Providing complete information makes it easier for the manufacturer to understand exactly what your bed requires.
Order a Customized Mattress from Top Sleep UAE
If your bed does not match conventional mattress dimensions, you do not have to compromise with an incorrectly sized mattress.
Top Sleep provides customized mattresses in the UAE for standard and non-standard bed frames, with options for different dimensions, firmness levels, materials, support requirements, and sleeping preferences.
Top Sleep also provides mattress solutions for homes, villas, hotels, serviced apartments, guest houses, and furniture or interior projects.
Measure carefully, record every dimension, and discuss unusual bed-frame details before finalizing your order. A few extra minutes spent measuring can help ensure that your custom mattress fits your bed beautifully and delivers the comfort you expect.
Frequently Asked Questions
How do I measure my bed for a custom mattress?
Remove the existing mattress and measure the usable internal width and length of the bed frame. Take measurements at several points and also determine the appropriate mattress thickness.
Should I measure my old mattress or the bed frame?
For a custom order, measuring the actual bed frame is generally more useful because an older mattress may have changed shape or may never have fitted perfectly.
What dimensions should I give the mattress manufacturer?
Provide the internal width, internal length, required thickness, recess depth, and information about unusual corners or obstructions.
Can Top Sleep manufacture non-standard mattress sizes?
Yes. Top Sleep specifically offers customized mattresses for non-standard bed sizes and custom bed frames in the UAE.
Can mattress firmness also be customized?
Top Sleep states that its custom solutions can be tailored for different comfort levels, including soft, medium, firm, and dual-comfort requirements.