What causes interior lights (under r/v mirror) to come on during middle of night on 1997 Lincoln Continental

Last night, they came on and then later they went off by themselves. I keep headlights on auto, which come on while driving. This "mystery" has happened before, once several months ago, and then about a week ago. I had to replace my battery,so I would appreciate any help offered.

Asked by for the 1997 Lincoln Continental
poss your interior light dimmer ralay or controller. this need to be looked at by your mech
globalhelper, Thank you very much. Was hoping it would be something I could do. (smiles)

Thanks, again. Geranium