3/4 Bed Mattress Replacement
Did you inherit an antique (or “3/4″) bed? Or perhaps you have an RV that utilizes the 3/4 mattress size? And are you having trouble replacing the mattress? Don’t worry, you’re not alone!
Mattress Insider is here to help you simply and affordably replace your antique or 3/4 mattress.
We can design your mattress to your specific wants and needs. If you have an idea of how you want your mattress personalized (cooling memory foam, hinges or folds, specific mattress height), contact us below!
Mattress Insider is here to help you simply and affordably replace your antique or 3/4 mattress.
So What Size Is a 3/4 Mattress?

Generally, their dimensions tend to be 48″ x 75″. However, we do on occasion get calls for “3/4 double beds”, 48″ x 72″ mattress replacements, or for other unique sizes and shapes (such as 48″ x 75″ with notched out corners for the bed posts).
In the end, your antique bed may have a non-traditional 3/4 size. Not to worry! We can make mattresses in almost any size or shape.
Why Replacing a 3/4 Mattress Is Challenging
Antique beds can be beautiful pieces of decor for a spare bedroom. The only problem? Often, the mattresses are original and so old that they’re extremely uncomfortable to sleep on.
You won’t find a three quarter mattress size at your local mattress store, making them challenging to replace. The few that do offer them will likely charge a ridiculous amount for a custom order and pile on long lead times and no return policy.
If you’re like most people who own a 3/4 size bed, you’ve spent countless hours trying to track down a replacement mattress with little or no luck.
3/4 RV Mattress
Many RV mattresses are also the 3/4 size (48” x 75”), making replacing them extra challenging and extra necessary — factory RV mattresses aren’t exactly known for their amazing sleep-comfort, after all.
You won’t find a three quarter mattress size at your local mattress store, making them challenging to replace. The few that do offer them will likely charge a ridiculous amount for a custom order and pile on long lead times and no return policy.
If you’re like most people who own a 3/4 size bed, you’ve spent countless hours trying to track down a replacement mattress with little or no luck.
Custom 3/4 Mattress
With 3/4 mattresses being hard to find, you’re probably already writing off getting exactly what you want out of it — whether that be:
- Cooling features to help keep you from overheating
- A specific material for that perfect firmness and comfort level
- Or even folds or hinges so that you can pack the mattress up easily
We can custom create your 3/4 mattress exactly how you like. Reach out to our team via the contact form below, or skip the waiting and utilize our custom mattress building tool!
Try Our Custom Mattress Builder!
The recommended thickness for optimum comfort is 9"-10".
Other thicknesses from 4"- 8" are usually for special circumstances that require a thinner mattress (ie: overhead cabinets, windows, light switches, sofa sleepers, bunk beds, etc) but will still offer premium support and comfort even at these thinner sizes.
RV Bunk
34" x 74"
Twin
38" x 74"
Twin XL
38" x 80"
RV Full
48" x 74"
Full
53" x 74"
Full XL
53" x 80"
RV Queen
60" x 74"
RV Queen
60" x 80"
RV King
72" x 78"
Short King
72" x 80"
Easter King
76" x 80"
How to Measure Your 3/4 Bed for a Mattress
To measure your 3/4 bed size for a mattress, follow these simple steps:
Step 1: Start from the inside edge of the headboard and measure to the inside edge of the footboard (or the end of the frame if there’s no footboard). Then measure the inside width of the bed frame from one side rail to the other.
Step 2: Next, measure the depth of the frame from the base of the bed frame, or the platform the mattress will rest on, to the top of the side rails.
Step 3: Create a rough sketch of your mattress design, and add as much information as you think will be helpful.
Step 4: Contact our mattress experts to help find the perfect mattress for your 3/4 bed. We are able to create mattresses in almost any size using various materials (including foam, gel memory foam, and latex!).
FAQ
What is a 3/4 mattress?
A 3/4 bed is an antique bed size that is larger than a single but smaller than a double. This bed size was popular during the Victorian and Edwardian eras, often made to fit smaller bedrooms or children’s rooms.
What size is a 3/4 mattress?
3/4 mattresses aren’t made with standard or universal sizes. In fact, they’re often very different from each other, due to the era they were built in. Generally, their dimensions are typically (or are close to) 48″ x 75″.
Where to buy a 3/4 mattress?
So…Where Can I Get a Replacement?
This is where we come in!
We actually specialize in offering high quality but affordable odd size mattress replacements for antique beds, RV’s, trucks, boats, cots, and sofa beds. Because all of our mattresses are hand crafted and made to order, we have the ability to do almost any mattress size!
We also offer a 365 day money back guarantee and free shipping!
How big is a Twin bed compared to a 3/4?
A typical Twin tends to measure 39” x 75”, compared to a 3/4 measuring around 48” x 75”.
Are 3/4 mattresses different sizes?
Yes! Also called “antique mattresses”, standard bed measurements didn’t become relevant until the late 1800s. This means 3/4 mattresses weren’t manufactured with a typical rule of thumb regarding size — whatever would fit the space was created!
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