Questions? We're open! Call us! 888-488-1468
Questions? We're open! Call us! 888-488-1468

Any Size. Any Shape.

Custom Mattress

Are you looking for a custom mattress for your custom bed? Did you buy a bed set at a garage sale, estate sale, or an auction only to realize it requires a European size mattress or an odd international mattress size common in the UK, Ireland, Australia, etc?  We’ve heard it all!  🙂

Do you need a custom mattress topper, sheets, or mattress protector? has specialized in offering custom size mattress replacements since 2008.  We can supply almost any odd size or unique shape that you can dream up.

We’ve made custom size mattress replacements for:

Need a mattress made with a hinge, cut corner, radius corner (click here for Airstream mattress replacements), or a beveled edge?

Contact us for a quote! We can customize the arrangement of layers and densities to fit your exact needs.

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Need a custom size or shape?


Give us a call, we’re open!
7 days a week,
7:00 AM to 7:00 PM MST

We’d love to talk with you!

Not in the mood to talk on the phone? That’s okay! Instead, fill out the form below and click the “Send Your Request” button.


Need an answer right away?

You can also call us:

(888) 488-1468

Custom Made Mattress Options:

While our most common request is for a custom size memory foam mattress, we also offer odd size latex mattresses, innerspring mattresses, gel foam mattresses and more.

We have a large assortment of the most innovative foams available including Bayer and Preserve Visco Elastic Memory Foam, Natural Latex from Latex International, Gel Memory Foam, and Plant Based High Density foams. All custom mattresses will be made with a luxurious cover in one of our 3 fabrics: Certified Organic Cotton, Cool-Max by Dupont, or Bamboo.

We use only the highest quality USA made open-cell plant based temperature neutral foams. All of our memory foam and high density foams have been tested by the independent laboratory Certipurus and have been certified to be non-toxic.

All custom mattresses come with a 10 Year Manufacturers Warranty. All of our mattresses pass the strict federal CFR 1633 flame retardant mattress standards.

Production time is anywhere from 5-7 business days (call for lead time). Transit time to the east coast is 2-3 business days and 4-5 business days on the west coast. Your custom made mattress will be compressed, sealed in plastic, boxed, and shipped to you via FedEX Ground.

A Few of Our Customer Testimonials:

“So glad I decided to do the custom size mattress. It fits perfectly in the little Roadtrek. It feels nice and firm yet comfortable. Thank you for a nice product and great customer service!” Katherine, Los Angeles CA.

“The custom mattress I ordered and received from you is excellent. I received it 2 days earlier than projected. I will certainly recommend Mattress Insider to anyone who needs a mattress.” Deanna Huston, Greenwich, CT.

“Thank you so much for taking my order and getting us two of the most comfortable mattresses I have ever laid upon! We took them to the RV dealership today and put them on the bunk beds. They fit perfectly!

We also gave Rick at Nortwood RV your website as he was really impressed with your mattresses as well. Thank you again for all your help and I will now be ordering the encasements and bedding for them. Thank you again, Jonathan and Mattress Insider!!”
Darlene Foster, Orlando, FL

How to Obtain a Quote for a Custom mattress Size  
  1. Using a tape measure, obtain the dimensions of the surface the mattress is going on (plywood, platform bed, plywood, etc). Measure the longest length and the widest width. If it’s an odd shaped mattress, we can still give you a quote over the phone, but we may need a template or a schematic before we start production from your RV or Boat manufacturer or we can tell you how to make one).
  2. If possible, obtain the existing mattress dimensions (not required but helpful).
  3. Note the height of your existing mattress (if it’s still available) and note if you have any height restrictions (mattress is close the ceiling, you have a low headboard, etc)
  4. Double check your measurements one more time. Because of the labor and cost of materials involved, all custom mattresses are non-refundable once production is started and there are no returns, cancellations, or modifications.
  5. Give us a call for a quote! 1-888-488-1468!

Please note: due to the nature of constructing custom mattresses, allow for up to a 1.5″ deviation in either direction from the original measurements. We cannot guarantee that custom builds will match your original measurements exactly (but we do our best, and generally isn’t an issue!). If you have any questions regarding this, please do not hesitate to give us a call!

Below are some of the custom mattress projects that have been done recently.

Custom boat mattress

Custom Cut Corner RV Mattress

Texas Shaped Mattress
Custom Mattress: Hinged Mattress

We’ve customized mattress for all the major RV brands, including Airstream, American, Coachmen, Fleetwood, Starcraft, Baja, Sunnybrook, Allegro Bay, Edge, Jayco, Northwood, Skyline, Thor, Winnebago, and more.

Radius or rounded corners – How To Measure

If you know what size you need for your custom mattress and just have rounded corners, we’ve made this video to make it easy for you to see how to measure your radius cut(s).





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Browse 66 questions Browse 66 questions and 86 answers
I'm looking for an Alaskan king size mattress which is 9x 9 how much would that cost?
Dulce on Jan 21, 2018
BEST ANSWER: Hello Lucia,
We can certainly make a 9' x 9' mattress for you. The price would depend on the thickness and type of mattress you prefer. Please contact us directly at 888-488-1468 to discuss your options and pricing.
Kind Regards!
I need one 36in.widex75in,long?
A shopper on Jul 25, 2018
We can certainly customize a mattress to your 36 x 75 size. Please contact us at 888-488-1468 to discuss your options and pricing.
Kind Regards!

I mistakenly thought I could repurpose my old mattresses by putting two twins together to form a King, but learned that twins are not the same length as a King bed - after I purchased a non-refundable bed frame. Subsequently, there is a 6” gap at the foot of the bed. This poses two problems: 1. There’s a gap between the mattress and footboard. 2. A King fitted sheet (and mattress pad) does not fit properly on the two twin mattresses.

How much would it cost to make a 80”x6”x8” block to fill in the gap? Thanks!
Natalie J on Jan 13, 2018
BEST ANSWER: Hi Natalie! You may be better off getting a new mattress as adding a block would not be very comfortable for sleeping.

Please give us a call to discuss your options!
Can you make a 2 meter by 2 meter square mattress?
A shopper on May 6, 2018
BEST ANSWER: Yes, we can make your 2m x 2m (78.75" x 78.75") mattress. Please contact us directly at 888-488-1468 to discuss your options and pricing.
Can you make flex top mattress 76x84?
June H on May 27, 2018
BEST ANSWER: We purchased a custom King foam mattress from Mattress Insider. It came as quickly as they promised, they called me to verify that I had measured the area correctly and we love the mattress. We're in our mid to late 60's and in the past have been uncomfortable sleeping. Sore hips mainly. Our mattress has two or three layers (don't remember specifically) and is holding up well; it's very comfortable. I have recommended MI to others needing mattresses; custom sized for RVs or just for their home. Good mattress, excellent price.
I had something built in my home office. It has storage underneath. I want to make into daybed. It's 37.5w × 96L. Memory Foam if possible. Not sure how think. Just want a guest to be comfortable. I could also do a little less on length. How much would this be? If you need a picture let me know
Theresa R on Oct 24, 2018
BEST ANSWER: Hello Theresa,
We can certainly make your day bed mattress in a 37.5 x 96 size. Please contact us directly at 888-488-1468 to discuss your options and pricing.
Thank you!
My leather sleep sofa queen mattress cannot longer be used, lumpy and broken down. . Sofa still very nice. Can someone physically measured size needed and also install it for me here in downtown DC? . Zip 20005
A shopper on Aug 30, 2018
BEST ANSWER: Hello! Unfortunately we do not offer measuring or installation services. Please give us a call to discuss.
Do you offer shipping to Ontario Canada?
Kerry M on Apr 27, 2018
BEST ANSWER: We sure do! There is an additional fee to ship to Canada. Please give us a call for pricing!
Where can I buy a box spring frame for my short queen mattress? I will be using it inside the house until my RV is ready
Barbara C on Sep 24, 2018
BEST ANSWER: Hello! We would recommend looking locally. Maybe a local carpenter can put one together for you!
My brother and I are making a custom loft bed with a hidden bed that folds into the loft. Because of this we would need two mattresses each 38" (W) by 37.5" (L). When it folds out it will be a full sized twin mattress. Is it possible to do this?
Double T on Jun 20, 2018
Yes, we can certainly make a two piece mattress to fit your needs. Please contact us directly at 888-488-1468 to discuss your options and pricing.
Kind Regards!
Can you make one 47”x27”, 4”-6” thick?
A shopper on Jul 15, 2019
BEST ANSWER: Hello! We can certainly customize any of our mattresses to any size you need! Simply give us a call to discuss!
I have an antique cradle. The mattress needs to be 22x37. The depth needs to be 3.5. Is this something you can help me with?
A shopper on Jan 15, 2019
BEST ANSWER: Due to the special fire-retardant laws associated with crib mattresses, we are not set up for manufacturing of these special items. However, there is an online company who can assist you. You may review their website at the following link: Kind Regards!
I need 2 bunk bed mattresses but one of the corners is at a slant is the style in our camper. Do you make those?
Jaime H on May 25, 2020
BEST ANSWER: Yes, they do. We had one custom made for our Airstream. It is curved at the top and end. Airstream gave us the specs or measurements for the company to make a perfect-fit mattress. About two years after we bought it, a few threads on one side started to come out. It was just the cover. Mattress Insider sent us a brand new cover based on specs. Fit perfect. No charge. We will buy from them again. Oh, what we bought was a CoolMax 5 inch topper to make the camper bed more comfortable. Works perfect!
Firm matress 48 x 78, approx. 9” deep, what can you do?
Rita B on Nov 19, 2019
BEST ANSWER: i just love mine it was too low so i put it on top a mattress that i was not uesing and it works great
I have an ARI 120 sleeper my mattress is 45 in wide by 78 in Long 9 1/2 inch thick what can you do?
STRETCH on May 19, 2019
BEST ANSWER: I also needed an unusual size mattress and mattress insider made a perfect fit according to my exact specifications. The mattress is also finished off very well. It looks like a regular mattress . I’ve had it for 2 years and it’s holding up beautifully.
Hi, I would like a mattress that is circular and 15’ in diameter. Is this something you guys are capable of?
A shopper on Apr 13, 2020
BEST ANSWER: Yes, we are able to make a 15" diameter mattress. Please contact us at 888-488-1468 to discuss your options and pricing. Kind Regards!
Does any of your beds come with a warranty, if so which ones? Also where can I find warranty information on your website?
A shopper on Feb 11, 2021
BEST ANSWER: Hello! All of our beds come with a warranty and varies by model. Which mattress were you interested in?
Can I get a rough estimate for a kid matress size 27.5"*63" about 4" hight?
Does shipping cost? I live in NYC.
A shopper on May 16, 2020
BEST ANSWER: We can certainly help you with a kid mattress. How old is the child? Since there are different choices available, please contact us directly at 888-488-1468. Kind Regards!
Do you offer payment plans?
A shopper on May 16, 2020
BEST ANSWER: Hello! While we do not offer payment plans we recommend checking out Paypal. They have great credit options!
Hello, i want to convert my closet into a chilling area and i want to put a thin but confortable mattress inside. Is it possible to have a custom sized mattress for an affordable price?
A shopper on Apr 26, 2020
Thank you for your interest in Mattress Insider! Yes, we can make mattress in any size and shape. Please contact us directly at 888-488-1468 to discuss your options and pricing.
Kind Regards!
What’s the average starting price for a RV 72 x 75 king that is hinged so top half is 4 inches tick, bottom half of hing is 7 inches thick?
A shopper on Apr 25, 2020
Because there are different options to choose from, it would be much easier to discuss over a call. Please contact us at 888-488-1468 to discuss your options and pricing.
Kind Regards!
How much will it cost to get a Wyoming King?
A shopper on Apr 12, 2020
BEST ANSWER: The Wyoming King is available in different types of mattresses, with various "feels", so pricing would depend on what type of mattress you prefer. Please contact us directly to discuss your options and pricing. Kind Regards!
I need a thin piece to add beside another mattress to make it wider. This is to be a camping mattress to insert inside our van. So it doesn't need to be of any great quality. Just simple. The measurements would be 77" long, 15" wide and 4.5" thick. Can you make something like that? I know its not ideal as a regular bed, but we don't care. This is just for camping. Thanks.
Susan on Apr 7, 2020

Yes, we are able to make this insert piece for your van. Please contact us directly at 888-488-1468 to discuss your options and pricing.
Kind Regards!
Hi there. I'm looking for a rectangular mattress with angle on one side, measures are longer than average as well. May I have an email so I can send a sketch?
Claudia M on Mar 6, 2020
BEST ANSWER: Hello! You can email your sketch to
Need a rv short queen size 60 x 74 that is hinged horizontally for a class A, do you sell those?
A shopper on Jan 28, 2020
BEST ANSWER: We sure do! Simply give us a call to discuss your options!
I am looking for a 35 x 84 mattress. I have low back pain and need a thick mattress to take care of this issue.Can You make a mattress this Size?
Trudy S on Jan 3, 2020
BEST ANSWER: Hello Trudy,
Yes, we make mattress in all shapes & sizes. Please contact us at 888-488-1468 to discuss your options and pricing.
Kind Regards,
I have an antique daybed, can you make a custom mattress?
A shopper on Jan 2, 2020
BEST ANSWER: Yes, we make mattresses in all shapes and sizes. Please contact us at 888-488-1468 to discuss your options and pricing. Kind Regards!
I need a European grand king size mattress. 180cm x 200cm for an old Eutopen IKEA bed. Can you do that at a reasonable price?
Jack Z on Dec 22, 2019
BEST ANSWER: Hi Jack and thank you for your interest in Mattress Insider! We can certainly help with that! Give us a call to discuss your options! 1-888-488-1468
I bought an Eastlake Full bed, but a regular full mattress is to long i need one that is 54"x72" is possible to find one this size?
Michael on Nov 25, 2019
BEST ANSWER: Hello Michael,
We can customize a mattress to fit your needs, please contact us directly at 888-488-1468 to discuss your options and pricing.
Kind Regards!
Do you send samples of the different types of foam or gel foam?
A shopper on Nov 11, 2019
BEST ANSWER: As a rule, we do not send out free samples, but we can make them available for a small fee. Please contact us directly to discuss the foams. Kind Regards!
5.0 / 5.0
55 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 5 out of 5
Your center for customized mattresses and everything that goes with them!
This site is a godsend for people who have an antique bed that doesn't take a standard mattress. We purchased the coil mattress and were delighted with how firm and comfortable it is. Also you can get a pillow topper and a waterproof, bedbug proof mattress protector made to fit your special size. There is nobody else out there that I could find who could all this!
June 22, 2017
over 4 years ago
Rated 5 out of 5
Great Mattress for our RV
We received our order exactly as expected. The quality is excellent and actually much better than expected. The mattress is firm and comfortable. The person who took my order was very courteous and helpful to ensure my order was accurate. I would definitely use Mattress Insider again for any future needs
June 4, 2018
over 3 years ago
Rated 5 out of 5
Best comfort reasonably priced. Have had the expensive mattresses. My opinion best bang for the buck.
2nd order the first was for our RV we absolutely loved it so we got one for our home bedroom still loving it!
June 10, 2018
over 3 years ago
Rated 5 out of 5
A great mattress ! Sleep better in the camper than at home
October 26, 2017
over 3 years ago
Rated 5 out of 5
perfect custom made topper
needed different European size topper, Mattress Insider delivered.
July 27, 2017
over 3 years ago
Rated 5 out of 5
Couldn't be happier
We couldn't be happier with our custom mattress, the mattress is a pleasure to sleep on and is of top-notch quality. The entire process from ordering to delivery was easy and the folks at MattressInsider extremely helpful.
October 18, 2017
Rated 5 out of 5
The customer service was top notch and the product was exactly right.
September 13, 2017
over 3 years ago
Rated 5 out of 5
Love my mattress
I love my Luxury Memory Foam Mattress and cover. It is so comfortable, that I often go in the motor home to sleep on it when it is in our driveway!!!
November 15, 2017
over 3 years ago
Rated 5 out of 5
Very pleased with service, Quality and comfort of mattress with topper. A really happy discovery of this company that could customize a Euro Queen, manufacture and deliver within two weeks at a great price. Highly recommend.
August 21, 2018
over 2 years ago
Rated 5 out of 5
We special ordered 2 toppers for our couch and dinette. We had them custom made. They arrived as promised and fit like a glove. They are comfortable and gives us just the right padding for sleeping. Thank you Mattress Insider. We are now going to order one for the Queen bed in our new RV .
February 25, 2016
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