First time hoggie owner, care to advise?

[Minkness]

To my understanding hoggies need less humidity, not more. Too much humidity can cause respiratory issues and scale problems. Dry coco may be ok, but moist is too much humidity. A good substrate would be sanichips also labeled 'reptile litter' in most pet stores. This should be aspen and not pine or cedar.

As far as the burrowing and hiding, it's my understanding that this is normal for them so nothing to worry about. As for breathing, sounds like it could be the humidity or stress from being handled.