First you need to warm her up slowly! Use your own body heat or a heating pad set on low to slowly raise her temperature! Once she is awake then worry about keeping her at a steady temperature. The lighting can be fixed by getting a lamp that you can turn on and off manually or have a timer by her cage but for now just leave the light on in the room she is in.
I hope the little one is ok! I am also new so I would take any of the older members or breeders advice over mine but I noticed no one has responded and warming up a hibernating Hedgie is important!
Also DON'T use warm water to heat her up that could send her into shock or risk drowning.