No. I've had the noisy ones before and these are smooth like a regular pillow case. They do not make any noise.

Utopia Bedding 4 Pack Waterproof Pillow Protectors with Zipper Standard Size (White), Bed Bug and Dust Mite Proof Pillow case Covers, Moisture Wicking Pillow Encasements 20 x 26 Inches

Utopia Bedding 4 Pack Waterproof Pillow Protectors with Zipper Standard Size (White), Bed Bug and Dust Mite Proof Pillow case Covers, Moisture Wicking Pillow Encasements 20 x 26 Inches

Q: Are these a product of china

No, mine were a product from Pakistan.

Q: Do they work for cool gel pillows? Is there still a cool side?

Not that I'm aware of. It's just a protective zippered pillow case.

Product ID: 445897882

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Details

Size
Standard
Material
Knitted Jersey
Brand
Utopia Bedding
Color
White
Product Care Instructions
Machine Wash

💧100% Waterproof TPU Coating

🔒Premium Zipper Closure

🛡️Bed Bug & Dust Mite Proof Seal

Frequently Bought Together

Utopia Bedding 4 Pack Waterproof Pillow Protectors with Zipper Standard Size (White), Bed Bug and Dust Mite Proof Pillow case Covers, Moisture Wicking Pillow Encasements 20 x 26 Inches

Utopia Bedding Waterproof Pillow Protectors Zippered King Size (2 Pack, White), Zippered Pillowcases, Bed Bug Proof Pillow Encasement Covers 20 x 38 Inches

Description

🛏️ Sleep Smart, Stay Protected – Because Your Pillow Deserves the Best!

SECURE ZIPPER LOCK - Double-hemmed stitching and a premium zipper ensure no unwanted intrusions or leaks.
EFFORTLESS MAINTENANCE - Machine washable and tumble dry safe for hassle-free freshness and longevity.
BREATHABLE COMFORT FABRIC - Soft polyester knitted jersey keeps your pillow cool and cozy while protecting it.
TAILORED FOR STANDARD PILLOWS - Perfectly fits 20 x 26 inch pillows for a sleek, snug look that stays put.
ULTIMATE ALL ROUND PROTECTION - Shield your pillows from moisture, allergens, and pests with a full TPU waterproof barrier.

The Utopia Bedding 4 Pack Waterproof Pillow Protectors combine a soft polyester knitted jersey fabric with a TPU waterproof coating and premium zipper closure to provide comprehensive protection against moisture, bed bugs, and dust mites. Designed to fit standard 20 x 26 inch pillows, these pillow encasements are breathable, durable, and easy to care for, making them an essential upgrade for a healthier, cleaner sleep environment.