Allergy Guardian Ultimate Cotton Mattress Encasing

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ITEM# 16692917
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ITEM#: 16692917

Enjoy a healthier night's rest with the luxurious all-cotton mattress encasing from Allergy Guardian. The breathable blend of cotton offers superior allergy protection by deterring dust mites, pet dander, and bed bugs from building up within your mattress. Available in a variety of mattress sizes and depths, these Allergy Guardian ULTIMATE mattress encasings feature an exclusive 3.6-micron cotton barrier and zippered closure for complete coverage.

  • Allergy-preventative mattress encasement
  • 100-percent cotton shell
  • 300 thread count
  • 3.6-micron barrier
  • Solid white color
  • Prevents bed bugs, dust mites, and allergens
  • Zippered closure
  • Non-waterproof fabric design
  • Machine washable
  • Sized for pocket depths of 9, 12, 15, and 18 inches
  • Available in Twin, Twin XL, Full, Queen, King, and California King

  • Twin: 39 inches wide x 75 inches long x 9 inches, 12 inches, or 15 inches deep
  • Twin XL: 39 inches wide x 80 inches long x 9 inches, 12 inches, or 15 inches deep
  • Full: 54 inches wide x 75 inches long x 9 inches, 12 inches, or 15 inches deep
  • Queen: 60 inches wide x 80 inches long x 9 inches, 12 inches, 15 inches, or 18 inches deep
  • King: 78 inches wide x 80 inches long x 9 inches, 12 inches, 15 inches, or 18 inches deep
  • California King: 72 inches wide x 84 inches long x 9 inches, 12 inches, 15 inches, or 18 inches deep

The digital images we display have the most accurate color possible. However, due to differences in computer monitors, we cannot be responsible for variations in color between the actual product and your screen.


Style Classic
Material Cotton
Type Allergy Protector, Bed Bug Protector, Complete Protection, Dust Mite Protector, Encasement, Mattress Protector
Care Instruction Machine Wash
Color White
Product Features Allergy Bedding, Hypoallergenic
Dimensions See Details
Warranty Lifetime Manufacturer
Model Number 20 ZE ASZM CTSP
Country of Origin El Salvador
  • Glad I got it
    Verified Purchase
    Option: 12" White - Full | 15" White - Queen

    After visiting my allergist and told I have a big reaction to dustmites, I looked around for more cheaper alternatives to Allergy Guardian (recommended by my doctor). All the reviews on other brands were mixed so finally I just went with his recommendation. And the fact that this company makes its product in US. The first night it felt a little different but after that I didn't noticed it anymore. I didn't feel more hot with it and so far after using it for over a month it's been great. Also, washing and drying it was easy.

  • Verified Purchase
    Option: 12" White - Queen

    This user earned $2.00 in rewards for writing this review.Learn More

    This works as expected. Fits the mattress well and doesn’t seem loose. Material is nice, not noisy like some others. It seems to have cut down on my allergies and gives a good night sleep.

  • Expensive but worth it.
    Verified Purchase
    Option: 12" White - King

    Protects the matress from dust and mites. Full encasing. Feels just like cotton. Not waterproof but that's not what I needed. This will keep the mattress bug and dust free, is quiet and worth the investment.

  • Verified Purchase
    Option: 12" White - Full

Questions & Answers

  • Q:

    "Is this a zippered encasing?"

    • A:

      Yes, this is a zippered encasing.

  • Q:

    "How strong is this encasement? Our mattress top is separating from the bottom and the cover that came with it has a broken zipper. Would this product be an effective substitute for the original cover?"

    • A:

      Hello Jeanne B, Allergy Guardian encasings are constructed so they are very durable and should be a good substitute for the original cover. The fabric is very durable as well as we add binding on all the seams which provides added strength to the encasing. They are made to last! Thanks for shopping with us!

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Shipping & Returns

Contact Information

Shipping Information:

Our standard shipping method is ground shipping. We also offer expedited shipping for most items. Your final shipping cost and estimated delivery timeframe will be available at checkout.
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Standard Return Policy:

Items must be returned in new or unused condition and contain all original materials included with the shipment. For the return policy on a Marketplace item, please refer to the Seller’s individual policy, located on the product page by clicking on the Seller name. More Details

FINAL SALE EXCLUSION: Items marked as FINAL SALE are not returnable unless the problem you experience is the result of our error.

For your protection, all orders are screened for security purposes. If your order is selected for review, our Loss Prevention Team may contact you by phone or email. There may be a two business day delay to process your order.

** Most Oversize orders are delivered within 1-4 weeks. Some orders may take 6 weeks to be delivered.