How Do I Clean a Cot Bed Mattress?

Keeping your baby’s mattress clean is essential for creating a healthy, safe sleep environment. To help you out, Hannah Shore, our Head of Sleep Science, has put together this expert guide on how to clean a cot bed mattress the right way.

Accidents are all part of parenthood, but with the right know-how, you can keep your baby’s mattress fresh, hygienic, and supportive for restful sleep.

The best cleaning method will depend on the materials your mattress is made from, but here are some general steps I recommend.

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1. Always check the care label first

Before you do anything, take a look at the manufacturer’s cleaning instructions - this will either be explained on a label or in a small booklet that arrived with your mattress. 

It will contain specific instructions that are tailored to the materials and construction of the mattress. Following these guidelines helps you avoid damage and ensures you're cleaning it in the safest and most effective way possible.

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2. Wash the mattress cover (if it’s removable)

Many cot bed mattresses come with a removable, machine-washable cover - a real lifesaver for dealing with daily accidents. If your mattress has one, unzip it and pop it in the washing machine, following the care label instructions carefully (especially the temperature setting and drying method). 

A clean cot mattress cover not only looks fresher but also helps maintain a hygienic sleep space for your baby.

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3. Spot clean the mattress surface

For accidents or unexpected spills, quick action makes all the difference:

1. Blot the affected area immediately using clean cloths or paper towels. Press gently to soak up as much moisture as you can without rubbing it in.
2. Mix a small amount of lukewarm water with a baby-safe, non-toxic laundry detergent. Use a soft cloth to gently dab the stained area until the mark begins to lift.
3. Avoid using bleach, strong chemicals, or soaking the mattress with too much water, as these can break down the materials and compromise its comfort and safety.

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4. Allow to air dry fully

Make sure the cot mattress is completely dry before using it again. A damp mattress can create an unhealthy sleeping environment, encouraging mould or bacterial growth.

After spot-cleaning, give the mattress plenty of time to dry out completely before putting it back into the cot. Never cover or use a mattress that’s even slightly damp - moisture can create the perfect environment for bacteria and mould to grow, which isn’t healthy for your baby.

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5. Vacuum the mattress and cot

Start by vacuuming the entire cot bed mattress - top, sides, and underside - using an upholstery attachment if available. This helps remove dust, hair, and allergens that can accumulate over time.

Don’t forget to vacuum the cot frame as well, especially in corners and crevices where debris often collects. Regular vacuuming keeps the sleeping environment fresh and hygienic for your little one.

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Regular cleaning helps your baby’s mattress stay hygienic, supportive, and long-lasting. By following these simple care tips and choosing a quality mattress with washable, breathable materials, you’re creating the healthiest sleep environment possible.

Explore our range of cot mattresses designed to support safe, sound sleep from day one.