Thank you!You don't have to be on a strict schedule for guinea pigs. And I did answer your concern about noise, I believe at GL. They'll adapt. It's not a problem.
So just to be sure, going from waking up at 6am and sleeping 8pm to waking up at 4 pm and sleeping at 6 am is completely fine. As long as I feed their pellets, hay, and veggies daily, provide clean water, spot clean, and give floor time, then it's okay?
I still don't understand why one of my posts was either deleted or I don't have access to it. Thanks again though!