JesusLives and Tourist,
I was doing a little checking this morning, and Target had some light-blocking curtains on their website for about $25 (it wouldn't let me copy the picture or I'd paste it here.) They had built-in grommets, so if you already have rods over your window, they'd be a cinch to put up.
They also had some at JCPenney that were about $40.
I know it's a lot of money
but just thought that might be easier than boarding up your windows.
I completely understand about saving money though.
At my last job, I was working 4 AM to noon shifts for a while and then my schedule changed to midnight to 8 AM, so that was a huge adjustment and I totally understand that transition.
Ok, I'll be quiet about the shades for now
. Just thought I'd give you some ideas to check into that might be worth the money as far as convenience and efficiency.