It's a standard size sofa. Would it be full or queen?
it depends on the size of your sofa bed.is it full or queen?definitely you are not sure,so next thing you can do is,measure the length and width of your sofa bed and go to the mattress place they will give you the right size. i think it will be full size.and make sure that if it did not fit the way you want then they should return the money or replace the one that fits. good luck.
A full size mattress pad will fit a 54 wide by 75 long mattress A queen size mattress pad will fit a 60 wide by 75 long mattress Measure your sofa bed and select one of the above.
Usually it's a queen size, but not any mattress will do. I should be one made for a sofa sleeper. they bend easier than a normal mattress would and a bit thinner.
