I just slept for 18 hours straight?!💀

Idk what the fuck is wrong with me but I broke my personal best of 14 hrs from 3 years ago. Is it really possible for a human being to sleep that long without any medication or illness?

I went to sleep at 12pm yesterday for a quick afternoon nap cause I had an online class from 4pm. Alarm rang, I woke up but decided to not take the class cause I was feeling sleepy so I decided to sleep and hour or so more. The next thing you know it's 6am the next day😭🙏

What's your longest record for sleeping straightaway?