The Sleeping Beauty by Burne-Jones.
One of the things I have achieved over the last few years is how learning to sleep, which would change my life for the better. People who suffer from depression, or who do not adhere to any kind of schedule usually end up with insomnia and yes, bad sleeping habits. For years, due to medication mostly and habit, I was a night owl who liked to sleep until noon most days. And it became harder to maintain as I had children. I cheated even then, going back to sleep after my children went off to school. And then a doctor made me realize that insomnia was part of depression and if I embraced that, I might could change how I slept. I did not believe him but a few years ago I attempted to do what he said. It was really rough the first year, but the second year was better and the third, and now sixth year in, I am sleeping at night, sometimes falling asleep so naturally I cannot even believe it's happening. Of course, this meant controlling my caffeine consumption, knowing when I got over stimulated, and practicing, with some failure I might add. But now I am a sleeping beauty, so to speak. It took me six years to change how I slept. It's a milestone for me.
One of the things to note here is how long it took me. Six years to really reach a natural new sleep pattern.