What do you think angels' lives are like?

Have you ever thought about angels? Probably. But just wondering if you think about maybe their lives up in heaven, do you think they go to bed, or even if there are days up in heaven? Do you wonder what they do all day(or whatever time space it could be)? Do you wonder what their jobs are, and if there are ranks, or special angels? Are they like people and where do they come from? Are they born from a mother? Does God choose them? Were they once people? There's a lot of wondering you could do. What are your thoughts on angels? How much do you know? What do you wonder?