I have a (maybe stupid) question. Since 3 nights my 7 month old lo sleeps through the night (from around 7 till around 6). But he refuses to take a catnap and is awake for around 5 hours before bedtime. I think he can handle it, he gets tired of course but sleeps ok, no wakings in 1-2 hours after bedtime. Is this ok or is it harmful for him to be up for such a long time?