How do I care for my very sick parakeet until I can get her to a vet in the morning?

I made her a warm nest at the bottom of the cage next to a water dish
thanks to everyone for answering but my bird died before I was able to get to a vet becasue it showed signs of being sick at night and by morning she had died. I found out the cause was from fumes from a non stick pan
- rose89