Both DC are excellent sleepers (which I am very grateful for) but insist on waking up generally anytime between 5 and 6am 
After 6 and a half years of no lie-ins, I think I have reached the end of my tether. Me and DH are permanently tired, snappy at each other etc.
They share a bedroom and they know they are not allowed in our bedroom until 7am (at weekends) but they always wake us up by going to the toilet, talking, playing (or killing each other). Particularly if they wake up at, say 5.30, they cannot play nicely with each other for 90 minutes in their bedroom 
One of us could have a lie-in whilst the other one takes them downstairs and we do do this occasionally but both me and DH are generally 'once awake, have to get out of bed' people.
They don't have particularly early bedtimes, and over the Easter weekend these have slipped anyway...yet they are still awake at the crack of dawn!
Please help - any advice would be greatly appreciated 