I read before going to bed. I have screens off - but not 2full hours before. I've never done that (if we're including TV screens). I usually take a warm bath before going to bed and read in the tub, then read in bed. But, like I said, it's not getting to sleep that is my problem...it's sleeping a full 7-8hrs, which is ideal for me. I know part is because the sun comes up earlier. When winter comes I will have less an issue. I have room darkening curtains, however we also have a semi-circle window above the reg. windows. It has some kind of sheer covering that came with the house. It lets in light. I usually have something over my eyes (although not a mask as the feeling bothers me all night long).
I had my Vit. D checked around Easter and I was fine. I'm probably getting more now that it's sunnier than it was in April. I was also told to go off my B Complex as my B was high at that time.
graceteacher - it depends. Usually the sleep issue comes first and then I start needing a nap to function.. Two weeks ago I was doing so well. Sleeping through the night and staying asleep until 6:30-7am (Have my grandson 3xper week and have to get up at 6:20 on those days).