yes i did mine in 2017.... drink the laxative at home.. my appt is 9am so i wake up 4am drink that laxative then go toilet immediately few times until you pass out water only.... then get ready by 730am head to hospital by 830am register and wait for my turn.... basically the tiring part is going to toilet few times la in the morning but it will be over in a couple of hours... during the procedure i dont feel anything when they do the colonscopy and endoscopy ( i do both).... looks like only last less than 30 mins then push me out to rest... they sedate me half body numb.... my wife is with me that time after 30mins i can wake up and walk already.... get result and go home...