I work from home (doing a degree) and I know it doesn't sound particularly tough, but it's a maths degree and it really kills my energy.
I have to be up at 8:30 (pretty good) but seriously struggle to get to be before 2 am and I find it begins to ruin my day, so I drag myself to library (when possible) just to force the hours of studying into me.
I've always wondered what the average time was for other people to go to bed, I suppose it's something I never discuss with people! If so, what's your routine!?