bman123,
Aspen or cyprus are good ones NO PINE OR CEDER!!! They have toxic phenols. Aspen is a light coloured sub and is reasonably good with humidity Cyprus holds a higher humidity, it is a dark colour. So the either or where I live the RH is quite low 20s inside and so I use Cyprus Mulch. I mist every few days and keep the enclosure between 55-70 Rh depending if it is a mist day or not. When a shed looks likely I mist more frequently and keep it at 60-75 rh until it is over and then go back to the regular method.

F/T well I got around the girlfriend issue by using a opaque quick lock tub inside a second tub buried at the back of the freezer clearly marked. It worked out for us.

Hides there is a great DIY for flour dough 'clay' here um I don't recall where diy hides might find it. It is cheap easy and fun too build ones that fit correctly. I bought clay flower pots and cut the bottom off with a dremmel tool (OUTSIDE!) and used the top half with a flower pot drip saucer on the top. (water bowl double function) if you choose to do this cut a bit of plastic for under the water bowl so it isn't so disruptive when you change the water. there is a 'privacy screen' under the bowl.

I hope this Helps!
Alex