[aeriklawson]

I've been amazed by how much sunlight affected my sleep quality - a year or two ago I purchased a curtain rod and a pair of black-out curtains to put in front of my bedroom window.

I can't emphasize how much better I sleep with it. When I forget to close them some nights, the next day I feel significantly less rested and my sleep quality after sunrise is a lot worse (I often wake up several times as well).

Check it out especially if your room gets lots of sunlight in the morning.