Easy I figured it out long ago.
Tell the kids they are
just fine to get up at 4:00am to check their stockings. Yep, I don't care.
Cos at 2pm when the seabreeze is in they are wrecked and need a sleep, mum needs one too so off they all go for a snooze and I go to the beach. A sail when tired is better than sitting at home with kids full of energy and watching the trees bend.