Allergy Control Cotton Performance King/ California King-size Mattress Encasing

by Allergy Control
Out of Stock

Plus, Free Shipping & 5% Rewards back for only $19.95/yr Learn More




5% Rewards

On Every Order

Free Shipping

On Every Order

Exclusive Rewards

Earn Big - Up to 40% back!

Free Returns

On Select Clothing & Shoes

Exclusive Offers

Straight to Your Email Inbox

5% Dining Rewards

Get Paid to Go Out Tonight

ITEM# 12749557
    Notify me when it is back in stock!

    Enter your email address, we will notify you if it comes back in stock.

Love this item?

Save it to a list so you can find it anytime!


something went wrong.

Please refresh the page and try again.


ITEM#: 12749557

This exclusive Allergy Control encasing is the top selection for your health and well-being. This encasing zips around your mattress for a layer of protection for allergy relief and bed bug protection underneath your bed linens.

  • Type: Mattress encasement
  • Provides the allergen and bed bug protection you need along with total sleeping comfort
  • Includes an antimicrobial treatment to inhibit mold and mildew
  • Physician recommended
  • Closure: YKK zipper
  • Depths 12-inches and above feature a unique three-sided clamshell zipper opening for easy placement on your bed
  • Flaps at the zipper provide additional protection to block allergens
  • Pattern: Solid
  • Color options: White
  • Thread count: 300
  • Pocket depth: 9 inches, 12 inches, 15 inches, 18 inches
  • Materials: 100-percent cotton
  • Care instructions: Machine washable
  • 3.6 micron pore size blocks dust mite and pet allergens
  • Scientifically tested and proven to protect against bed bugs
  • Soft, supple and feels invisible on your bed
  • Breathable to keep you cool and comfortable
  • Stain repellant finish protects your mattress and the encasing


  • King: 78 inches wide x 80 inches long
  • California King: 73 inches wide x 84 inches long

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.

Click here to view more sizes.


Material Cotton
Type Allergy Protector
Care Instruction Machine Wash
Condition New
Product Features Allergy Bedding, Antimicrobial, Hypoallergenic
Set Includes Single
Dimensions 11x9x6
Warranty Lifetime Manufacturer
Country of Origin United States

Product Reviews

5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
  • Most Recent

  • Allergy mattress cover
    Verified Purchase

    Good quality. Zips to enclose mattress but is hard to put on a king mattress. A bit of a struggle but satisfied.

    Read More
    jgher May 31, 2016
  • For extra protection. ..
    Verified Purchase

    We bought this for extra protection for our new, ca king, 14" foam mattress. It does take 2 people to put on a bigger size bed.

    Read More
    J. M. Dec 27, 2015
  • Allergy Control Cotton Performance King Encasement
    Verified Purchase

    I love that this cover is 100% cotton. I washed it before I put it on. Seems like it will hold up well, It should for the price. It is very thick and seems sturdy. But Overstock does give a great price on it. I did a lot of research and it seems like this was the only one that was 100% cotton and would protect against dust mites and bed bugs. It was expensive but my organic cotton mattress was a huge investment so I want to protect it. Now I just have to find something to make the mattress waterproof or water resistant to protect against potential accidents my 3 children might have. I also got the Allergy Controll pillow covers and they seem great so far. I am only giving 4 stars because it was soooo expensive.

    Read More
    nontoxic Apr 11, 2011

Questions & Answers

  • Q:

    "Why did you choose this product?"

    • A:

      because it is 100% cotton. I would have accepted if it had a little stretch too. Needed something breathable.

    • A:

    • A:

      I was looking for an all cotton protector. It is very hard to find most are water proof and polyester and when you sleep on them you sweat.

    Read more Read less

Shopping Tips & Inspiration

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.
Standard shipping details
Expedited shipping details

Standard Return Policy:

Items must be returned in new or unused condition and contain all original materials included with the shipment. 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.