Well, I like to sleep in total darkness in my own home. However, in the hotel room, I would leave the toilet light switched on. I don't feel comfortable sleeping in a strange place with all the lights switched off.
well i like to sleep with the lights off if there are other people in the house.... nut in case i am all alone then i prefer to sleep with the light on and .....with all the doors and the windows locked.
have a good day.