I think somehow I lost a couple of hours recently due to sleep confusion. Slept late yesterday because I felt guilty of nodding off for 3 hrs in the morning, and 3 more again at night (which makes 6 hrs). In the end I only slept like 4 hours for the "real" sleep. Today, because of the perspective that I only slept 4 hrs the night before, I nodded off again for 2.5 hrs in the afternoon, which is my usual practice if I only had 4 hrs of sleep, without the 6 hrs of nap the day before. hmmm... so I think there's something mysterious here... think I lost some hours somewhere, but am not exactly sure which time frame was that... what do you think?
Anyhow, I still feel guilty now. Going to sleep late again to make up! grrr...