Ours wake up now when the light comes on at about 4:30a, LOL. If we don't have the light, they tend to wake up just at dawn...not full sunup, but once it's sort of grey out and they can see. There's never an egg for us then...they tend to come out, eat and scratch around some, then one by one will head back in to lay. Even with the light, they rarely leave an egg till after we've let them out and they go back in. We'll get a couple reasonably early...by 8 am or so, and then usually by noon or 1pm, they're done laying for the day. We do check fairly often though...I like to fetch them as soon after laying as I can. We have one or two who like to sit on them, and they all use the same box, so I'd rather they didn't get squished or walked on any more than necessary. Once we remove the eggs, the "sitters" leave the coop, so it frees up the box for the others. Why they don't ever use the other box, I'll never know...it's just the same but...chicken brains!??