Mom's right about the windows.
Growing up I would get a weekly headache on Friday nights, and they didn't stop until I became close with Danielle. Ethan might remember the fact that I hated weekends during elementary school, and Friday nights were always so different than the rest of the week. Sure we'd have Shabbat dinner as a staple of the week, often earlier than normal dinners so mom could get ready for services later on, but even without that, Fridays nights were just different. Maybe there's something about knowing that Saturday would be different made Friday night different. Now, the idea of my feeling different on Friday nights continues in different forms. Instead of headaches, I notice that I'm more frustrated and wrestle more with insomnia.