Roller blind

I felt so disappointed when I woke up this morning because I'm still sleepy, but I woke up early because of the sunlight that goes through my window. My eyes still want to close, but because of the sunlight, I can't continue my sleep, it's too light already in my face. Instead, I plan to wake up a bit late to get some extra hours of sleep because I went to bed so late these past few days. A friend of mine encouraged me to buy a roller blind where it protects the sunlight to get through my window. If I have that thing, then I can sleep longer in my bed. So probably one of these days I'm going to look for that.