Substrate for Hog Island Boa

I'm curious what substrate do you recommend using for Hogs? She is in Animal Plastic T-8 cage. Thanks.

Aspen shavings or chips work great.

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Newspaper¡

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Not very fond of newspaper but aspen shavings will do. I think coconut is out of question because it brings too much humidity?

Also, I am curious - based on experience - what temps do you keep your cage at? Would you say 88 hot spot and 80 cool spot is optimal?

Corrugated wrap.

Aspen would work fine. Cypress mulch is another good option.