24 hour duty

Hello med students. I just want to ask regarding the 24 hour duty. Totoo po ba na gising kayo sa buong 24 hours na yon? Or nakakatulog naman? (Gigisingin lang pag may kailangan). Also, how many times a week do you do 24 hour duty?

I'm genuinely curious because I think the quality of care might be compromised if kulang sa tulog.