It's too bad you can't get like a security camera that would be on all the time. As for while you are sleeping, I might even go to the extreme of having a baby monitor so I could hear if there is any movement. But I'm silly like that.
You've got a lot of eggs there, I would hope they wouldn't ALL hatch during the night. That would be a bummer!! We had an incubator that only held 10 - 12 eggs.