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Derila Ergo: A contoured memory foam pillow with side wings and a removable, machine-washable cover.
See Derila Ergo on the official site60-day money-back guarantee
How do I know my pillow is worn out?
A worn-out pillow no longer springs back, holds your head at a comfortable height, or stays clean after washing. Four quick checks will tell you.
The fold test
The fold test shows a worn fibre or down pillow when it stays folded instead of springing open. Fold the pillow in half, press for a few seconds, then let go.
A fresh pillow snaps back. A tired one stays bent or opens slowly. This test suits fibre, down and feather pillows. It is not for foam, which is slow to rebound by design. For foam, press a hand in and watch whether the dent fills back in.
The lumps and flat spots check
A pillow with permanent lumps or thin patches has lost its fill. Lay it flat and run your hands over it.
Example: a side sleeper with wide shoulders needs a tall pillow. If the head now sinks to the mattress, the pillow has lost the height that person needs.
Smell, stains and allergy flare-ups
A smell that survives washing or yellow stains mean it is time to replace the pillow. Dust mites (tiny bugs that live in bedding) are one reason allergy sufferers sneeze at night. A review says mite allergens are stable and can remain for years, which is one reason old bedding can keep bothering allergic sleepers.
If you sneeze more in bed than elsewhere, check the pillow’s age.
Waking up stiff or sore
Waking with a stiff neck can mean your pillow no longer holds your head at a comfortable height. Many things cause it, though, including your mattress, your sleeping position and how you spent the day. Our guide to stiff neck after sleeping covers the common causes.
How long does each type of pillow last?
Typical pillow lifespans run from about 1 year for polyester to several years for latex. These are rough ranges, not guarantees.
| Fill | Typical lifespan | How it goes flat |
|---|---|---|
| Polyester fibre (polyester fiberfill) | About 1 to 2 years | Fibres compress and clump |
| Down and feather | About 3 to 5 years with care | Clumps, loses loft (height) |
| Memory foam and contour foam | About 2 to 3 years | Slowly softens, may crumble |
| Latex and shredded foam | Often longer than foam | Slowly softens |
Use, washing, your body weight and the cover all change these numbers. A heavier sleeper or one who washes often may see a shorter life.
Polyester and fibre fill
Polyester pillows are cheap and wash easily, but they flatten fastest. Plan on about 1 to 2 years. They suit anyone who likes a soft pillow and doesn’t mind replacing it often.
Down and feather
Down and feather pillows can last about 3 to 5 years if you fluff and air them. Down is the soft under-layer of bird plumage, while feather is the stiffer outer kind. They clump when damp, so dry them fully.
Memory foam and contour foam
Memory foam pillows usually last about 2 to 3 years. Memory foam is a slow-springing foam that moulds to your head. Watch for dents that stay and crumbling edges. Our best rated memory foam pillow page compares options.
Latex and shredded foam
Latex, a springy foam made from rubber, tends to outlast the others. Shredded foam can be adjusted by removing fill, but the pieces break down over time.
Your pillow replacement checklist
Two or more ticks on this list means it is time to replace your pillow.
- It stays folded in the fold test.
- It has permanent lumps or thin patches.
- Your head sinks toward the mattress, or the pillow feels lower than it did.
- A smell stays after washing.
- Yellow stains won’t wash out.
- You sneeze more, or your nose is stuffier, at night.
- You wake with a stiff neck more often.
- It’s older than the typical range for its fill.
- Foam dents don’t fill back in.
Example: your 3-year-old polyester pillow stays folded and smells after washing. That is three ticks, so replace it.
See a doctor if neck pain lasts, doesn’t improve within a week, follows an injury, or comes with numbness, tingling or weakness in an arm or hand. MedlinePlus lists these as reasons to get checked. A new pillow is not a stand-in for that.
Can I make a pillow last longer?
Yes: a pillow protector, regular washing and proper drying can add time. None of it stops wear completely.
- Protector: zip a pillow protector under the pillowcase. Allergen-proof covers were part of a small trial in hospitalised children with asthma, though that trial combined several steps.
- Wash: hot washing at above 55°C kills mites and removes allergens, but only if the care label allows it.
- Dry fully: damp fill grows musty and clumps.
- Fluff and rotate: do this daily for fibre and down.
- Foam: keep it out of the washing machine and direct sun. Spot clean and wash only the cover.
For fill-by-fill steps, see how to clean pillows.
Quick tip: wash pillowcases weekly. It’s the easiest habit on this list.
Are there pillows that don’t go flat?
No pillow lasts forever, but foam and latex hold their shape better than loose fibre. Fibre compresses, down clumps and foam slowly softens.
A contour pillow has a defined shape, with a dip for the head and a raised curve for the neck. One example is Derila Ergo, a contoured memory foam pillow with front support wings. The maker says the cover is cooling and the materials are hypoallergenic. The maker hasn’t published a study of Derila Ergo itself, so treat those as claims. Its cover is removable and machine washable, which helps with upkeep.
The best choice depends on how you sleep, not just on durability. Side sleepers usually need more height than back sleepers. Our how to choose a pillow method walks through it.
What should I look for in a new pillow?
Pick a new pillow by height and firmness for your sleeping position first, then check practical details.
- Side sleepers: taller and firmer, to fill the gap between ear and shoulder.
- Back sleepers: medium height, so the head isn’t pushed forward.
- Stomach sleepers: thin and soft.
- Allergies: look for a washable cover and a protector.
- Returns: check the return policy before you buy. Derila Ergo’s maker advertises a 60-day guarantee, but returns must be in original condition and packaging, and shipping costs are not refunded.
- Date it: write the purchase date on the tag so you know when to check it again.
Check the current Derila Ergo price and the return terms on the official site.
See Derila Ergo on the official site60-day money-back guarantee
Where this fits in your sleep setup
A pillow is one part of comfortable sleep, and knowing when to replace it keeps that part working. Our healthy sleep pillows guide covers position, height and neck comfort together. If you’re shopping now, how to choose a pillow gives a simple method, and how to clean pillows helps the one you buy last longer.
More guides in Pillow care
Questions readers ask
Is it bad to sleep on an old pillow?
An old pillow isn’t dangerous, but it may be less comfortable. It can be flat, lumpy or hold odours and allergens, and you might wake stiff. If you have lasting pain, numbness or tingling, see a doctor instead of just swapping the pillow.
How often should you wash a pillow?
Wash pillowcases weekly and the pillow itself about every few months, if the care label allows. Use a protector to cut how often. Foam pillows usually shouldn’t go in the machine, so wash only a removable cover and spot clean the foam.
Can a flat pillow be fluffed back to life?
Fluffing can help a lightly flattened fibre or down pillow, especially after drying. Once it fails the fold test or has permanent lumps, fluffing won’t last. Foam that has softened or developed dents can’t be fluffed back to shape.