oh my god

ok so I was talking to my friend yesterday around 6pm or so. I've had a long 2 weeks of mock exams and I was absolutely exhausted, so I absolutely crashed while waiting for them to reply and woke up around 40 minutes later or so. I had completely lost track of time and saw it was 6:40PM or so. However, my brain registered that as 6AM. So I went back to bed.