What do you mean "night light? She shouldn't have light at night.
What is her daytime lighting schedule? If she isn't getting 12-14 hours of light per day, it can trigger hibernation attempts. Daylight from a window is usually not enough.
* * * Nancy * * *
Retired from breeding
Rescue contact for both the Hedgehog Welfare Society and the IHA
Rescued over 70 (and counting) hedgehogs needing a new home