Mine don't. The coats wouldn't stay on for a minute....
My goats house has deep bedding, so it's really quite warm, if at times a bit fragrant in there.

.. My kids just snuggle up with the older nannies (not their mums), the GG's are always together in a big heap...
Mackenzie goes on at length about how goats need to eat more and rougher hay during the colder part of winter, its the hay which keeps them warm rather han concentrates. I certanly have noiced that mine eat more hay the colder it gets.
That said, if they are cold and shivering I would put coats onto them. I would just worry that would mean you have to keep them in coats through the winter.
Depending on the sizes of your goats - large dog coats should fit, also there are loads of patterns on the web. I think Ballingal uses pony rugs that were on special offer... I have also seen a gorgeous BA male at a show who had a hand-crocheted coat/blanket on - very colourful and so 1970s...
