I've asked lots of stores but can anyone tell me where I can find a duvet that is a size between a single and a double. I think they are called a 'two thirds' or something like this.

Try Google or Ask.com etc. I did & in UK there are only single, double, king & super king sizes listed.

Hi ponytail,isnt it called a queensize? you can get them on amazon,but limited choice .hope this helps

http://en.wikipedia.org/wiki/Bed_size

in the uk the size of the bed is Prince or small double or three-quarter ..never heard of a prince size duvet though

http://en.wikipedia.org/wiki/Bed_size

Didn't the lady ask for duvet size & not bed? They are different.

yes its queen size

yes, but you'll note from the chart, it give a name to the corresponding size in different countries, thus , i would imagine, making it easier to purchase a cover

Why not just use a double? You'll have a much wider choice. When I built my own 4ft. bed, I just used a double quilt and it has the advantage of not falling off so easily.
Oh, and a queen size is bigger than a standard double.

Ponytail..just get a double, as Chriskay says. Far easier to find covers too. My 4ft bed uses a double, as does my sons 3ft 6ins. I aslo use a double on my 5ft bed(fine on my own). It all works perfectly well.

Hi its called a queen size usually 4ft in width.T J Hughes.The linen warehouse have them.Or just use a normal double size at 4ft 6in .it just drapes over nicely.hope this helps.Valli