TPU in Mattress Protectors
TPU is thermoplastic polyurethane. In protectors it is commonly used as the waterproof membrane bonded or laminated to fabric.
The short answer
TPU stands for thermoplastic polyurethane. In a waterproof protector, a very thin TPU film can be laminated between or to textile layers to block liquid.
What to compare
Top-only, fitted five-sided and zippered six-sided designs serve different needs.
Separate the sleeping-surface fabric from any fill and the waterproof membrane.
Check supported mattress depth and the exact washing and drying instructions.
How to make the decision
Ask which layer is TPU, whether the brand publishes certifications or chemical-exclusion claims, and what wash/dry temperatures the membrane tolerates.
Continue with our protector selection guide or compare organic mattress protectors.
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