I think you're right — as long as you're getting the work done that needs to be done, and you're not killing yourself by working crazy hours, then I don't think there's anything to feel bad about! That's part of the beauty of it. For example, I hardly ever "go out" during a weekday, but tonight (Monday) a friend was having a going away party and I just got in (12:45 AM), which is way later than I'll usually go to bed, so tomorrow I probably won't wake up at the usual 4:30 AM, but my schedule will just work around that — no biggie!
I think you're right — as long as you're getting the work done that needs to be done, and you're not killing yourself by working crazy hours, then I don't think there's anything to feel bad about! That's part of the beauty of it. For example, I hardly ever "go out" during a weekday, but tonight (Monday) a friend was having a going away party and I just got in (12:45 AM), which is way later than I'll usually go to bed, so tomorrow I probably won't wake up at the usual 4:30 AM, but my schedule will just work around that — no biggie!