Rarely do I ever get enough sleep. Most nights average to about four to five hours, without really including the periodic waking every hour or so.
Personally, I love sleep; it's easily my favorite activity, to the point where the first thing I do when I wake up is start counting the hours until I can go back to bed.
I suppose it comes from my good memory of dreams. I mean, everyone dreams but few remember; hence they claim they don't. But I'm almost always able to remember at least two dreams a night, even in that short span of sleep I get.
And my dreams–even my nightmares–are among the best things that ever happen to me. Except for the ones so real that I wake up, and hours later I can't distinguish what was a dream and what I actually remember happening to me. Those worry me more than anything, if only because my memory of my past (anything beyond three years) was already hazy at best, and this only clouds them further.
Still, sleep is the best thing that ever happens to me, and it's the number one thing I look forward to each day.