Ask what a degu does to bedding and the answer is: everything. Degus dig in it, nest in it, drag it around the cage and chew it constantly, because their teeth grow throughout life and gnawing is how they keep them worn. That makes degu bedding a food-adjacent decision as much as a flooring one. The safest substrate is one that is low in dust, free of strong aromatic oils, and built from fibres that do no harm when a determined rodent shreds and swallows some of them.
The safe shortlist, laid deep
Kiln-dried aspen is the standard loose choice: the drying strips out the aromatic oils, and the shavings stay loose enough to dig through. Hemp bedding has become a strong alternative, absorbent and naturally low in dust, and unscented paper-based bedding suits degus who sneeze at wood altogether. Whichever you choose, lay it deep — a proper digging layer across the cage base, not a token scattering — because burrowing and tunnelling are core degu behaviour and a shallow floor frustrates it. A topping of plain hay gives them material to harvest and carry into a nest corner, and it gets replaced as they work through it.
What a degu must never be bedded on
Fluffy cotton-style bedding is the dangerous one in a degu cage. The fibres do not break down, degus pouch and swallow them while shredding, and the result can be a gut obstruction or a strand wound tightly around a leg. Cedar and untreated fragrant pine carry aromatic oils that sit heavily in the air at cage level and irritate degu respiratory systems. Scented beddings do the same job with perfume instead of wood oil. Dusty, cheap sawdust is out for the same airway reason, and anything plastic-based or dyed should be treated as a chew toy that failed its safety test — degus will eat it, so it does not belong under them.
Keeping a deep bed healthy
A deep substrate does not mean a neglected one. Degus concentrate droppings and urine in chosen corners, and those spots should be lifted out regularly while the rest of the digging layer stays in place; stripping the entire base at once removes every scent marker and tunnel wall they have built, and they will spend days remaking it. A rolling rhythm works better: spot-clean corners through the week, top up compressed areas, and do a fuller change on a schedule that keeps the base sweet without demolishing the whole system weekly. Wet, compacted patches are the thing to hunt — those are what sour the air at degu height. Like their chinchilla cousins, degus also keep their coats in order with a sand bath, offered in a heavy dish for short sessions and then removed; it is a grooming tool rather than part of the bedding, and keeping it separate is one more reason the substrate itself can stay dust-extracted, deep and dry. Recording that rhythm in KinsLe's Care Teams, with spot-checks and fuller changes assigned and timestamped when done, keeps a many-handed household honest about when the degu base was last properly done.