I have to try this. But how does it work out for you when you "have to" be up late, e.g. at social activities? I imagine yawning my way through a late dinner, falling asleep at the cinema.
Realistically, that sort of thing suffers. My wife keeps an early schedule and anything past 7 or 8 is iffy. She can usually do it, but there's a non trivial chance that she'll be too tired to function properly.