I used to go either swimming or running most mornings before work, got up at 6 easily and was usually in bed by 10 the night before.
That gradually faded away as I let my life become cluttered with unimportant junk (about 20 years ago), and now I really struggle to get up in the morning. I try to get back in the rhythm, but it never seems to last for more than a couple of weeks until bad habits start to take over again.
I read this on the BBC yesterday, found it quite interesting. It is easy to forget how badly poor sleep can effect our health.
http://www.bbc.co.uk/news/magazine-24444634
I was thinking of setting an alarm on my phone for 9pm every night, to switch of my TV and computer, try and remove some of the junk from life that just kills time.