Best Bedding for Rabbits: Safe and Unsafe Options

Walk into any pet shop and you’ll find shelves of bedding products marketed for rabbits. Many of them are safe and effective; some are genuinely harmful. Making the right choice affects not just your rabbit’s comfort, but their respiratory health, gut health (since rabbits inevitably eat some of their bedding), and skin. This guide covers exactly what to use, what to avoid, and why.

Understanding the Two Bedding Layers

A well-set-up rabbit enclosure uses two distinct materials in the living area:

1. Substrate — the base layer that covers the floor, primarily for hygiene and warmth
2. Nesting material — additional softer material in the sleeping area or hide box

These can be the same material, but optimising for both purposes often means using different products in different areas.

Safe Substrate Options

Paper-Based Bedding (e.g. Carefresh, Back 2 Nature, Finacard)

The gold standard for indoor rabbits. Compressed paper pellets or shredded paper-based bedding offers:

• Excellent absorbency
• Minimal dust (important for rabbit respiratory health)
• Safe to ingest in small amounts
• Good odour control
• Biodegradable

Best for: Indoor pens, litter trays, base layer in sleeping areas.

Kiln-Dried Wood Pellets (e.g. Wood fuel pellets, Megazorb)

Compressed wood pellets — provided they are kiln-dried softwood with no added binders or scents — are an effective, economical substrate. The kiln-drying process removes the aromatic phenolic compounds present in fresh softwood that make untreated pine and cedar dangerous.

Best for: Outdoor hutches, large indoor enclosures. Very economical for larger spaces.

Important: Ensure they are plain kiln-dried wood pellets, not scented or treated versions.

Hemp Bedding (e.g. Aubiose)

Hemp-based bedding is highly absorbent, low-dust, and safe for rabbits. Popular in the UK particularly for outdoor hutches.

Best for: Outdoor housing, larger enclosures.

Hay

Hay is both food and bedding — a dual-purpose material. Providing a deep layer of hay in the sleeping area and throughout the enclosure allows rabbits to forage continuously (essential for gut health) while also providing a soft, warm surface to rest on.

Hay alone has limited absorbency compared to paper or wood products, so it is usually best combined with a more absorbent base layer beneath.

Best for: Sleeping area nest material on top of a more absorbent base substrate.

Safe Nesting Material

For the sleeping area specifically:

• Meadow hay — natural, safe, edible, warm
• Straw — less nutritious than hay but warm and comfortable. Fine as supplementary bedding in colder weather, but should not replace hay as the primary material
• Fleece liners (for indoor setups) — washable, warm, and comfortable. Do not absorb well on their own — must be used over an absorbent base layer. Some rabbits ingest fleece fibres; monitor closely and discontinue if this is observed

Unsafe Bedding Materials

Cedar Wood Shavings

Cedar contains aromatic phenol compounds that cause hepatotoxicity (liver damage) with chronic inhalation. A rabbit spending hours each day in a cedar-bedded hutch accumulates significant exposure. Cedar shavings should never be used for rabbits — despite being widely sold in pet shops.

Pine Wood Shavings (untreated/kiln-dried)

Similar concern to cedar — aromatic compounds in fresh pine shavings are problematic. Kiln-dried pine is safer (the drying process reduces phenolic content significantly), but kiln-dried wood pellets are a better-evidenced choice than shavings.

Clumping Cat Litter

Rabbits eat their litter. Clumping cat litter — which forms a hard solid mass when wet — causes fatal intestinal blockages when ingested. Never use in a rabbit enclosure or litter tray.

Silica Crystal Cat Litter

Same ingestion risk as clumping litter. Never use.

Scented Products

Any bedding, litter, or spray with added fragrance is a respiratory irritant for rabbits, whose sensitive airways are easily damaged. Avoid all scented products in the rabbit’s environment.

Newspaper Alone (as a base)

Newspaper ink is not specifically toxic, but it’s not absorbent, provides no insulation, and becomes slippery when wet. If using recycled paper, use compressed paper pellets rather than flat newspaper.

Cleaning Schedule

• Daily: Remove soiled patches, replace wet hay
• 2–3 times weekly: Spot-clean thoroughly, top up dry areas
• Weekly: Full litter tray clean, replace base layer in litter area
• Fortnightly to monthly: Full hutch or enclosure clean — remove all substrate, wipe down surfaces with rabbit-safe disinfectant, allow to dry fully before replacing

The RabbitCare App

The RabbitCare App (free on Android) includes a cleaning schedule reminder that can be customised to your cleaning frequency — ensuring that the enclosure never becomes unsanitary enough to contribute to health problems.

---

References & Sources

1. RWAF — “Rabbit Bedding and Substrate” — rabbitwelfare.co.uk
2. House Rabbit Society (HRS) — “Rabbit Housing Substrate” — rabbit.org
3. Harcourt-Brown, F. (2002) — Textbook of Rabbit Medicine, Butterworth-Heinemann
4. PDSA — “Rabbit Bedding” — pdsa.org.uk
5. Meredith, A. & Lord, B. (Eds.) (2014) — BSAVA Manual of Rabbit Medicine, BSAVA