A topper spends every night under your sheet, absorbing body oils, sweat and dust. Washing it keeps it fresh and keeps the fill from matting down. The care steps below follow the instructions on our 550 GSM and 1000 GSM toppers. If yours is a different make, read its label first, because foam and some covers cannot be machine washed.
Can you machine wash a mattress topper?
A down alternative topper, yes. Ours are machine washable on a gentle cycle. A memory foam topper, no: foam breaks down in a washing machine, so it is spot cleaned instead. Check the label before you load anything.
What do you need before you start?
- A large-capacity washing machine, or a laundromat machine. A queen topper is bulky and needs room to move.
- Mild detergent, in a small amount.
- A dryer that can run with no heat, or a clean, dry space to air dry.
- Clean dryer balls, if you have them, to keep the fill from clumping.
How do you wash a mattress topper step by step?
- Shake the topper outside or over the bed to knock loose dust.
- Spot clean any stain with a little mild detergent and cool water.
- Load it alone so it has room. Do not stuff it in with other laundry.
- Run a gentle cycle in cold water, no warmer than 30°C. Skip the bleach.
- Add a second rinse if your machine has one, so no detergent stays in the fill.
- Remove it right away and move to the dryer or drying space.
How do you dry it without flattening the fill?
Heat is the enemy. Tumble dry with no heat, and stop to take it out and shake it every so often. Damp fill clumps and can hold moisture, so make sure the topper is fully dry before it goes back on the bed. It may take more than one cycle.
Do not iron it and do not dry clean it. Keep it away from flame.
How do you restore the loft after washing?
Shake the topper vigorously for up to five minutes. That separates the fibers and lets air back in. Then give it 24 to 48 hours to regain its full loft. It will look flat right out of the dryer. That is normal, and it comes back.
| Step | Do | Don't |
|---|---|---|
| Wash | Gentle cycle, cold water, 30°C or below | Hot water, bleach |
| Dry | Tumble dry, no heat | High heat, ironing |
| Restore | Shake up to 5 minutes, wait 24 to 48 hours | Put it back on the bed damp |
| Clean | Mild detergent, extra rinse | Dry cleaning |
How often should you wash a topper?
Every few months is a good baseline, sooner if you sleep warm or have pets on the bed. Using a quilted mattress pad under the topper keeps the mattress clean, but a pad does not protect the topper itself. Between washes, shake it out every few weeks and air it in the morning.
How do you handle stains and spills?
Act early. Blot a spill with a clean cloth instead of rubbing it, because rubbing pushes liquid into the fill. Dab with a little mild detergent in cool water, blot again, and let it dry fully before the topper goes back on the bed. For anything that has soaked through, wash the whole topper rather than leaving damp fill inside.
Can you wash the topper and the pad together?
Not in the same load. A queen topper takes up most of a large drum. Washing it alone lets the water and detergent move through the fill evenly. The same goes for a quilted pad: wash it separately on the same gentle cold cycle and dry it with no heat.
Does washing shorten a topper's life?
Washing it the way the label says does not. The things that wear a topper out are heat, harsh detergent and being put back on the bed damp. Keep the water cold, the detergent mild and the drying gentle, and the fill keeps its loft. Compare that to never washing it: body oils and moisture build up, and the fill clumps and goes flat sooner.
What mistakes ruin a topper in the wash?
- Hot water or a hot dryer. Heat damages the fill and the cover.
- Bleach. The care label says no, and it can weaken the fabric.
- Too much detergent. Leftover soap stays in the fill and makes it stiff.
- Overloading the machine. The topper cannot move, so it washes unevenly.
- Skipping the shake. Without it the fill stays clumped and the loft stays low.
- Putting it back on the bed damp. Moisture in the fill can cause a musty smell.
How do washing steps differ for a pad and a topper?
Almost identical. Our quilted mattress pad has the same care label: gentle cycle, water no warmer than 30°C, no bleach, tumble dry with no heat. The difference is volume. A pad has 100 GSM of fill, so it dries faster and recovers its shape sooner. A 1000 GSM topper has about ten times the fill per square meter and takes longer to dry and fluff.
How do you store a topper?
If you rotate toppers by season, store it clean and fully dry in a breathable bag. Skip vacuum bags. Compressing the fill tightly for months makes it harder to restore. When you bring it out, shake it for a few minutes and let it sit for a day or two before you sleep on it.
What if the topper still smells or looks flat?
A musty smell usually means the fill is not fully dry. Run another no-heat cycle and let it air. A flat topper usually needs a longer shake and more time. If it stays flat after several days, the fill may be compressed from age and the topper has reached the end of its life.
Not sure how much fill your next topper needs? Read 550 vs 1000 GSM, or our guide to a topper for a firm mattress.
