Allergy Control Cotton Performance Comforter Encasing

by Allergy Control
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ITEM# 12948703
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ITEM#: 12948703

Keep dust mites and allergens out of your bedding with this white comforter casing. The 3.6-micron pore size blocks tiny particles from reaching your comforter, helping reduce sniffles and sneezes as you slumber. This cotton comforter features a stain-repellent finish to resist damage from spills or smudges, and it's machine washable for convenient care.

  • Physician-recommended
  • Zips around your comforter and under your duvet cover for a layer of invisible protection
  • 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
  • Eco-friendly, renewable-source cotton encasing is breathable to keep you cool and comfortable
  • Includes an antimicrobial treatment to inhibit mold and mildew
  • Stain repellant finish protects your comforter and the encasing
  • Won't weigh down the comforter to disrupt your sleeping comfort
  • Thread count: 300
  • Closing: YKK zipper
  • Flaps at the zipper provide additional protection to block allergens
  • Color options: White
  • Materials: 100-percent cotton
  • Care instructions: Machine washable


  • Twin: 64 inches wide x 86 inches long
  • Full/Queen: 86 inches wide x 86 inches long
  • King: 102 inches wide x 86 inches long

Down and feather-filled products are packaged tightly during shipping. Upon receipt, remove this item from its packaging, fluff gently, and allow several hours for full loft recovery. In addition, products sealed in plastic packaging sometimes have a disagreeable scent because of concentrated natural fibers. A few hours of airing typically removes the odor.

We recommend that this item is fluffed at least once a week to maintain down distribution.

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.

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.


Material Cotton
Care Instruction Machine Wash
Color White
Product Features Duvet Insert
Dimensions 11x9x1
Warranty Lifetime Manufacturer
Country of Origin United States
  • Most Recent

  • Great quality, but too small for King
    Verified Purchase

    This is a quality down comforter cover that is soft, thick, and definitely seems to be adequate for keeping out dust mites, pet dander, dead skin cells, and the like. It adds a considerable amount of weight to my 100% down comforter, but it is much easier to wash regularly than having my down comforter professionally cleaned; so I appreciate this encasement for that purpose. However, what I am not happy with is the size of this cover. It is substantially smaller than my King-sized down comforter, therefore, my duvet covers are all lacking in substance by about 5 inches on each side, as well as from top to bottom. I have a lot of duvets and they are all much bigger than my comforter when using this cotton encasing, which is a bit of a bummer. Most of them have ties on each of the 4 corners, but even when tying up the comforter with this encasing on it, the sides of my duvet covers have an extra 5" or so of loose, unfilled fabric after making the bed... which is pretty disappointing. So now I am torn between having an allergy-free comforter that is too small for my duvets, or a bare comforter that fits the duvets perfectly. And given the heavy weight this adds to my down comforter, I imagine that this cover will only be good to use in the wintertime as it is much too heavy for use in the summer. So at this point, I think it was pretty much a wasted purchase as I expect after washing that it is going to shrink even more. If you are planning to use this cover as a duvet, then it will probably work well for you (although expect that it will shorten your duvet cover by a few inches around); but if you are planning to use it over your comforter and under a duvet, expect that none of your average king sized duvets are going to work well with it.

    Read More
  • I love the feel of the material
    Verified Purchase

    After being tested for allergies, I found out that I was allergic to dusk mites. In addition, I have a dog that likes to sleep on my bed. I wanted to protect my much-loved comforter (and me), so I took a chance on this comforter cover. I was very pleased with my purchase. It's well-made, very good quality, and reasonably priced. I would highly recommend it. (If you have allergies or if you are just disgusted by the knowledge that you are sleeping with dust mites, I would also recommend that you put on a duvet cover over the encasing that you wash regularly in hot water.)

    Read More
  • Sneezing stopped
    Verified Purchase

    We just got an elegant, lightweight down duvet and loved sleeping under it. It's very lightweight and warm. Unfortunately, my down allergies bothered me and I'd feel congested and have a sinus headache when I woke up, even though the duvet was hypo-allergenic. Since we've been using this cover on the duvet, I've had no more allergic reactions. The reason I didn't give it 5 stars is that it has made the duvet quite a bit heavier. It's no longer like sleeping under a warm cloud, however it keeps my headaches away, so it's a trade I'm willing to make.

    Read More
  • Verified Purchase

    Read More
  • Most Helpful

  • Sheets are cool and comfortable
    Verified Purchase

    I have been trying to get my bedroom as allergy free as possible and discovered these sheets and covers. They are soft and cool to the touch right out of the package. My sleeping has improved with them!

    Read More
  • Good cover
    Verified Purchase

    Keeps all the kooties out! Plus, my comforter is protected.

    Read More
  • Been a year!
    Verified Purchase

    This works amazingly well, its been a year and I still haven't bought a duvet to go over this and It is soft enough to be totally fine on its own. I did notice my comforter piled A LOT inside of it, so make sure you have a solid comforter. Other thing is my comforter gets loose from the ties inside and slides around but thats an easy fix and doesnt happen often. solid encasing

    Read More
  • Very nice.
    Verified Purchase

    Quite soft. Will use as my duvet too, no need for another layer

    Read More
  • Happy
    Verified Purchase

    I have an allergy to feathers and I have a dog. I wanted to keep dog hair out of my down duvet and any potential feather loss contained. This cover does exactly that. It zips closed and is not loud and crunchy (a problem I had with a protective pillow cover I once purchased). Very happy with this purchase

    Read More

Questions & Answers

  • Q:

    "Does the down comforter get all bunched up inside?"

    • A:

      This comforter can get bunched inside. It is recommended that this item be fluffed at least once a week to even the down distribution.

  • Q:

    "Why did you choose this product?"

    • A:

      Needed a great allergy control case for my comforter. Overstock has the best deal on this item as compared to another site which charges about twice as much.

    • A:

      Not much to choose from

    Read more Read less
  • Q:

    "Is the material thick enough to completely hide my dark purple comforter? I want to use it as a duvet cover. Thanks."

    • A:

      Hello marymarysue, we cannot confirm this since hide can be subjective. The fabric however, is thick and should work. Thank you for shopping with us!

  • Q:

    "could this hold my fiber bed. its a queen size."

    • A:

      Hello pj3232, the dimensions of this Allergy Control Encasing are: 11 x 9 x 1. If your queen size fiber bed is slightly smaller than these dimensions, it should fit. Thank you for shopping with us!

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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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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.