Everyone makes mistakes. To avoid a few do the following. Make sure you have good ventilation. Dust all prey items and feed just before lights out, as treefrogs are nocturnal. Use dechlorinated tap water. Keep things clean. Do not use gravel as a substrate, as it can cause gastrointestinal impaction. Provide plenty of branches to climb on and foliage in which to hide in.

As far as audio levels are concerned, I cannot tell you how loud Hypsiboas geographicus calls. I can tell you how loud Agalychnis callidryas is. The red-eyed leaf frog is loud, but not terribly so. Mine are in my bedroom upstairs and I can hear them downstairs in the living room, if the TV is not on. I think a barking dog is louder. Like a said I share sleeping quarters with most of my frogs, yet I do fall asleep. So I wouldn't worry about the noise levels too much.