I`ve bought all mine from Gibraltar, they have English beds there & I bring them thru the frontier. I do like my king size divans :D
If your not near Gib then have a look in El Corte Ingles, they have better than average beds ;) If you don`t like them try looking on the net, we`ve bought all kinds, even a bath

& had it sent over by road :D
Really depends where abouts you are but if its along the costas you might find British shop selling them so might be worth a look in the free papers knocking around :)