I had to a little at this - one of the children I care for, without exception, everyday last week took their nappy off at afternoon sleep time and weed in the bed. He has just turned 1.

I think it is worth trying to toilet train - it can't hurt, even if her signs are subconscious they are still signs... Otherwise nappy on back to front or tape is worth a try. Does she get clothes off too? Could you just put a pair of undies on over the top??