[Sun Care] Do I personally need to wear sunscreen indoors?

Beauty Tips For Body Care
I sleep during the day (ranging from 5am-6pm depending on the day). I have UV blocking curtains in my room and they make my room pitch black. Most of the rooms I spend the majority of my time in have UV blocking curtains. The most sun exposure I get on a daily basis comes from the few minutes I spend in the bathroom/kitchen in the evening after 3-4pm. Typing this I know it really doesn't sound like I need sunscreen indoors but I'm tretinoin and other actives that make my skin sensitive to the sun.I know there are other topics on this and I apologize for making a thread about this but my daily routine is nowhere normal so most of the advice in these topics don't help me.
Girls Blog 2015
Submitted by viaytrix