Cotton vs Wool Mattress Protectors

Cotton-faced protectors tend to stay low-profile; wool-filled products are more likely to add loft and change surface feel.

Cotton

A cotton-faced waterproof protector can remain thin while a separate membrane handles liquid protection.

Wool-filled products can add cushioning and moisture-management characteristics, but they are thicker and may need more specific care.

Choose cotton when low-profile waterproofing is the priority. Choose wool when you also want a meaningful fiber layer between you and the mattress.

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