In a nutshell
This happens when fabric particles get stuck in the mattress protector's 3D structure after washing.
To avoid this, it is best to wash the mattress protector in a laundry bag or white pillowcase in a clean washing machine without any other items of clothing.
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In more detail
Don't worry, the fabric particles will not affect the operation of the mattress protector.
It will still give your baby a safe and hygienic sleep.
Read our washing instructions to find out how to prevent this from happening.
You can use a vacuum cleaner, tweezers or compressed air duster to remove the fabric particles from the 3D structure.
Take a look at the product in our shop
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