bedding for almost all snakes that do not require high humidity. It lacks any harmful/toxic properties (unlike evergreen-derived beddings like cedar), is great for spot-cleaning, and, as far as I can tell from using it with literally thousands of snakes over the last 25 years, completely harmless when ingested, I feed all of my large collection (several hundred snakes) on aspen with never a problem.
I started out keeping my snakes on newspaper, but aspen is so low-maintenance and convenient I would never go back. For some reason my incidence of egg-binding went down considerably after switching to aspen as well.

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Brad Chambers
WWW.HCU-TX.ORG
Breeder of:
Green Tree Pythons
Jungle Carpet Pythons
Pastel, Pinstripe, FIRE, Piebald, Clown, Lavender Albino, Leucistic, and Spider Ball Pythons
Striped Colombian Boa Constrictors
Kenyan, Rufescens, and Conicus Sand Boas
Red Phase Western Hognose Snakes
Spider Western Hognose Snakes
Albino Western Hognose Snakes
Locality Trans-Pecos Mexican Hognose Snakes
Southern Hognose Snakes
Eastern Hognose Snakes
Tricolor Hognose Snakes
Hypo Checkered Garter Snakes
Eastern Blackneck Garter Snakes
Stillwater Hypo Bullsnakes
Patternless Bullsnakes
S. GA Eastern Kingsnakes
Locality Desert Kingsnakes
Albino Desert Kingsnakes
Hypo Desert Kingsnakes
Mexican Black Kingsnakes
Desert Phase, Striped Desert, Newport, and Coastal California Kingsnakes
Locality Mexican Milksnakes
Spotted Mexican Milksnakes
Tangerine Mexican Milksnakes
Locality Alterna
Abbott Okeetee Cornsnakes
Mexican Baird's Ratsnakes
Cape Housesnakes
Tangerine Albino African Fat -Tailed Geckos
Locality Spotted Turtles