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Fleece Liners: Washing, Wicking and Why Softener Ruins Them
Fleece liners are popular for guinea pigs and increasingly for rabbits, and they work extremely well until someone puts fabric softener in the machine. Understanding why that matters explains most of the rest of the routine.
Fleece does not absorb
This is the point people miss. Fleece is hydrophobic — it repels water. What it does is wick: liquid passes through the fleece to whatever is underneath, and the surface the animal sits on stays dry.
That means fleece is always a two-layer system. On its own, urine sits on top and the animal sits in it.
Underneath goes an absorbent layer: puppy pads, towels, mattress protectors or purpose-made absorbent liners. Whichever you choose, its job is to hold what the fleece passes through.
Preparing new fleece
New fleece comes with a manufacturing finish that blocks wicking entirely. It has to be stripped before first use.
- Wash hot with detergent, no softener.
- Dry on high heat.
- Repeat two or three times.
- Test: pour a little water on it. It should pass straight through. If it beads and sits on top, wash again.
Skipping this is the most common reason a new liner appears to fail immediately.
Why softener is fatal
Fabric softener and dryer sheets work by depositing a waxy coating on fibres. On a towel that reduces absorbency; on fleece it eliminates wicking, which is the only property you are buying it for.
The effect builds up and is difficult to reverse — several hot washes with a little white vinegar sometimes recovers it, and sometimes does not. Keep softener out of the routine entirely.
The washing routine
- Shake outside. Hay and droppings must come off before the liner goes near the machine, or you will be cleaning the drum too.
- Rinse cycle first for heavily soiled liners.
- Wash warm to hot with a modest amount of unscented detergent.
- No softener, no scented products.
- White vinegar in the rinse if odour is persistent — it neutralises rather than masking.
- Dry thoroughly. Tumble low or line dry; fleece dries fast.
Wash every two or three days for guinea pigs, more often in hot weather. Liners are under bedding and liners.
Where fleece works and where it does not
Works well: guinea pigs, rabbits, and anywhere you want a washable floor with clear visibility of what is going on.
Works poorly: burrowing species. Hamsters and gerbils need depth to dig into, and a flat liner denies a behaviour they are strongly motivated to perform. Use loose bedding for those.
Many households run a hybrid: fleece across the open floor, loose absorbent bedding in the toilet corner, and hay in a rack over neither.
The economics
Fleece costs more up front and less per month. Whether it saves money depends entirely on whether the laundry actually happens — a household that finds it easy will save; one that lets liners pile up will end up buying disposable bedding anyway and be worse off.
Be honest about which one you are before committing. Two sets minimum, three if the washing machine is shared or busy.
Odour control
Persistent smell from a fleece setup usually means one of three things: the absorbent layer is saturated, the fleece has lost its wicking, or the liner is not being changed often enough.
Check in that order. Replacing the absorbent layer is cheap; re-stripping the fleece takes a couple of washes; changing more often costs only time.
Comfort beyond the floor
Fleece hides, tunnels and pads are the same material and follow the same rules — wash them with the liners, never with softener. Loose threads are worth checking for, because small animals chew fabric and long threads wrap around toes.
Hides and beds are under hideouts and beds, and if you are setting up a playpen area with a washable floor, see cages and playpens.
Ask us about a specific setup, see the FAQ, or browse the range.
From our shelves
Products in this store that relate to what is covered above:
Prices are in US dollars. Delivery timings are on our shipping policy page and the return and refund policy sets out the window if something is not right.
Key points
- Fleece wicks moisture away rather than absorbing it, so it always needs an absorbent layer underneath.
- Never use fabric softener or dryer sheets: they coat the fibres and stop wicking permanently.
- New fleece must be washed two or three times before use to strip the manufacturing finish.
- Shake loose debris outdoors before washing, or you will be cleaning the machine as well.
- Two sets minimum, so one is always dry and ready while the other is in the wash.
- Fleece is a running-cost saving over disposable bedding, but only if the laundry routine is realistic for you.
