What's the highest amount of hours straight per session of gaming have you done?

it was after i had my appendix removed cause it ruptured i couldnt sleep properly after it and i stayed up for like 26 hours just playing various games on my gamecube in my room keep in mind i was like 11-13ish i forget exactly how old i was but the medicines they gave me to help me sleep didnt work and actually made me stay up for like 30 hours straight before crashing and sleeping for about 16