@heavyphil The issue is that the chamber is pressurized to 2.5 atmospheres, like a deep dive ("dive" is their nickname for these sessions). Bringing you up/out slowly enough so you don't get the "bends" takes 10-15 minutes, and you're simply lying back/down in a clear tube. I'm pretty much back and forth to the bathroom during 4:30-10 A.M., so I've scheduled my sessions for 11A-1P and will wear an adult diaper as backup.