I can make nighties as Lisa said. I do not have any pre-made nighties because I will custom make the item to be unique based on what people want.
Here is a photo of a very basic nightie I made for Yorkie Haven Rescue - this is the general style of my nighties but ruffles, etc can be made. I am making one of these for Peachbongi's dogs in flannel and made this matching young girl's nightie to go with it for her 5 year old (attached)
The yorkie print nightie is still available in some sizes at
Yorkie Haven Rescue Yankee Candle Sale or as I said, I do custom work so PM me if you'd like
Sorry for the poor photo quality, I took these with my iphone.