Congrats on your baby!! Mine are all on shavings. Although they don't need headroom, but they certainly appreciate it. I'm pretty sure mine are arboreal My littlest is in a 6 quart tub, and I just secured a leafy fake plant to the side and she just chills in that all day.
0.1 Old Lady (Chelsea)
1.0 Pure Bred Alaskan Malamute Puppy (Cody)
1.1 Crested Geckos (PLENTY more to come)
0.1 Arg Black & White Tegu
To Many Dam BP's and Breeder Rats