We have a night light in the room where Sally's litterbox is, but that's about it. Lady sleeps at night with us, Floppsy's outside, and the hammies are nocternal so they play all night. Sally sleeps in the bedrooms, and even 'owns' the top bunk in my sister's room. She doesn't need a night light because there are fish tanks in all the bedrooms, and the lights are on most of the night, so she can see fine.