Goat with a Coat

With the cooler temps I worry for our little babies who stay outside. Now, I understand that animals and especially those who normally stay out are probably fine. However, I felt compelled to provide a little extra love for my little Nigerian Dwarf Goat Frigg. She seemed extra cold this morning when I went out to water her and feed her and her brother Loki this morning.

Hopefully with some warmer temps coming this Monday we will be able to reduce her wardrobe and avoid having to get a coat for Loki too. He seems fine though. For some reason his coat is much thicker than hers.
How do you help keep your animals warm this time of year with these ridiculously cold temps (short of brining them in the house - and don't think I have not thought of that either)?

also, as goats are new to me - is this maybe not a good idea? If not, what would be some better options to keep her warmer? I have already added extra bedding to their house and make sure they have plenty of alfalfa, grain and water.
thanks for any suggestions.

Happy Homesteading friends!