I was so worried about Gigi's sleep (8PM-7AM without a cover) when my son came home and then his girlfriend was here for 3 months. I knew they would be making noise far later than Gigi was used to. She is in her own room at night but it doesn't have doors and is connected to the kitchen and living room. I installed tension rods and sheers on both entrances. There are lights on right outside of those curtains. Last night I heard my son grind spices in the Vita-mix at 10PM. Anyway, despite these changes for Gigi, I've not seen her have any behavior changes and she has not seemed to nap more during the day. We do occasionally hear a little buzz or wolf whistle in the night, but it feels like she is just saying hello. Good luck as you test what works in your small space.