Yesterday, I was quite slow with getting to bed and I did some little things after 22:00, but these things were necessary and did not waste my time. I was in bed at 22:40 then (having worked for my PhD until 22:05). And though it was a little late, I checked above, because even if I didn't stick to my aim word-for-word, I sticked to it analogously. Hope that makes sence.