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Allersoft Cotton King-size Comforter Encasement

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ITEM# 12363444
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ITEM#: 12363444

  • Protect your comforter with a comforter encasement from Allersoft
  • Bedding accessory is an effective barrier to dust mites and allergens
  • Comforter cover keeps feathers and down from escaping
  • Patented membrane-free fabric
  • No urethane or membrane on the back of the fabric which gives it a cool, smooth feeling
  • Zipper closure
  • Measures 106 inches x 86 inches
  • 100-percent cotton
  • Machine washable

Click here to view other sizes.


Material Cotton
Color White
Product Features Hypoallergenic
Size King
Warranty 25 year Manufacturer
Model Number 10023
Country of Origin United States

Customer Reviews

5 Stars
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1 Stars
  • Most Helpful

  • Great Value
    Verified Purchase

    Works great! I used to wake up every morning sneezing between the dog, cat and down comforter. Haven’t sneezed since. Love it.

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  • I was very happy with the order
    Verified Purchase

    It helped to reduce my allergy problem. It's soft and comfortable. Now there was no tiny feathers came out , I enjoyed my down goose comforter more than before. Before ordering, technical support help me about shipping, returning information to make me made decision to order it. It was useful system and good product.

    Read More
  • Most Recent

  • Great Allergy/dust mite protector
    Verified Purchase

    This is a sturdy dust mite protector. I often rip the protector when putting it on but this one held up to installation. Cheaper protectors often tear when I am pulling around the mattress and/or zipping them up. I know it works well since my allergies are at bay. The feel of this sheet protector is much nicer than those cheaper protectors as well. I think this will allow me to keep the mattress for a couple of years longer since it is will extend the life. Often the material of the cheaper ones also peels and/or pulls. One of the protectors was so disgusting after a year and was totally shredded soon after. The great thing is that this protector was cheaper than the others since I purchased it at While i have not washed this one yet, I suspect it will allow several washes based on its composition.

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  • These sheets are super cozy and don't pill!
    Verified Purchase

    Love it, great quality! It keeps all the little feathers in and its super soft.

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  • Good Quality
    Verified Purchase

    It is good to have an encasement to minimize washing your comforter. This provides a nice, comfortable fabric and holds comforter in place/

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  • Still allergic
    Verified Purchase

    Bought this so I could enjoy my feather duvet that my husband is allergic to. It slightly minimized his misery, but is not a sufficient barrier between the feathers and him. Waste of money for the intended purpose, so it and my feather duvet will sit in a closet.

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  • Good
    Verified Purchase

    I think I might buy another one of these. It does what it says on the tin. Keeps the feathers in and protects the duvet. However, the zip pull is quite large, but doesn't bother me too much. Also there is a seam down the edge of the center, which I didn't think would be there (I thought you would just have a seam on either side), so I don't know if these are seconds or if they are all like this. But as I said, it does the job.

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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. More Details

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

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