Where can I buy custom mattresses for antique bed frames?
I’ve just recently purchased an antique bed frame from a store, and they’ve told me that I have to supply the mattress myself.
Know any good companies out there that make custom mattresses for antiques?

The bed size you bought is probably something called a 3/4 bed. Which is between the size of a twin and a double. There are 2 things you can do that are relatively inexpensive. Custom mattresses could be cost you well over $ 1000.00
1. Get a twin mattress. Have a piece of foam cut to the size that you need and attach it to the twin mattress with the same joiner they use for king sized beds that come apart. http://www.ehow.com/how_5561616_make-twin-beds-king-bed.html
2. This bed should have springs or slats that were used to support the mattress. Put a board over that which will sustain a double mattress and secure it with straps. You can then put your double mattress or mattress and boxspring over that. The bed will be about 2 inches wider on both sides of the frame easily camouflaged with bedding and pillows.
If you insist on custom – or odd sized go here http://www.clintonbedding.com/odd-size-mattresses.html
Measure the frame for the size. You may be surprised to find that there is a current mattress that will fit.
If not, the mattress is going to cost you far more than the frame. They are made, but they are not cheap.
There is a place called The Original Mattress Factory in Columbus Ohio. They have stores through out Ohio. You can order any mattress and go there and watch them make it, if you wish. That is where we bought our mattress and box springs. You might contact them and see if they could make you one to fit and maybe ship it to you, if you are not close to Ohio.
Try this…
http://www.amazon.com/s/qid=1257671858/ref=sr_pg_1?ie=UTF8&rs=1055398&keywords=antique%20bed%20frames&rh=i%3Agarden%2Ck%3Aantique%20bed%20frames%2Cn%3A1055398%2Cn%3A%211063498&page=1&tag=fast-link-20&linkCode=ur2&camp=1789&creative=390957
I hope this was helpful for you. Good Luck!
Go to http://www.lovemymattress.com they can make you any Custom size mattress you desire. They are a manufacturer out of Greenville, SC.
I hope this helps.