Rest Assure Bite Barrier Waterproof Mattress Encasement

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ITEM# 14182500
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ITEM#: 14182500

Designed to protect mattresses against spills, accidents and stains, this twin-size mattress encasement from Rest Assure features a soft sleeping surface. Constructed to cover all six sides of the mattress, this encasement is both waterproof and breathable. Easily add this protective cover to a mattress with the convenient four-sided zipper. The zipper is covered with a hook-and-loop fastener to prevent snags on skin and fabric. The polyester and polyurethane materials are machine washable, making upkeep easy. This mattress cover is available in five sizes to suit your needs.

  • Type: Waterproof protector
  • Shell materials: 100-percent polyester with TPC coating
  • Backing materials: 100-percent polyurethane
  • Pocket depth: 9 inches (accommodates mattresses up to 14 inches thick)
  • Closing: 4-sided zipper
  • Internal protective flap and Velcro closure cover the zipper for protection
  • Covers all six sides of the mattress
  • Waterproof: Yes
  • Care instructions: Machine washable

    • Dimensions
    • Twin: 39 inches wide x 75 inches long
    • Twin XL: 39 inches wide x 80 inches long
    • Full: 54 inches wide x 75 inches long
    • Queen: 60 inches wide x 80 inches long
    • King: 76 inches wide x 80 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.


Material Polyester
Type Allergy Protector, Bed Bug Protector, Complete Protection, Dust Mite Protector, Encasement, Mattress Protector, Waterproof Protector
Size Full, King, Queen, Twin, Twin XL
Dimensions See details
Warranty 10 year Limited Manufacturer
Model Number KNE -T
Country of Origin China

Customer Reviews

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  • Most Helpful

  • Amazing Product!!
    Verified Purchase

    This product is absolutely an amazing piece!!! Extremely easy to use, and great protection!! Serves the place of a mattress cover, yet protects the mattress/spring box at the same time. If you do not yet own one of these, now is the time to get it!! Thank you for an amazing product!

    Read More
  • Most Recent

  • pdb
    Verified Purchase

    Tore while installing. Not with it go with something a bit note expensive.

    Read More
  • Very comfortable
    Verified Purchase

    I thought it was a little pricey at first, but when I put it on the bed, I love it. It was easy to put on. The feel of the material-you don't know that it is on. It is worth the price. Very comfortable.

    Read More
  • It's a breeze to put on.
    Verified Purchase

    The go-around zipper makes putting this cover on our 8" foam mattress easily done. Bottom on the bed, mattress, and then the top...zipped just fine. One personal remark; there will be "rustling" noise when moving in bed. It didn't bother us!

    Read More
  • Great cover, easy to use
    Verified Purchase

    I really liked this mattress cover because it can open up most of the way all around, so it's easy to get the mattress inside. The zippers don't stick. It also has excellent feel. I highly recommend it to anyone.

    Read More
    Verified Purchase

    Purchased this for a twin mattress. I am so happy with it that I am purchasing the King size for our bed as well.

    Read More

Questions & Answers

  • Q:

    "Will this cover fit a Cal King? Or is it for an Eastern King?"

    • A:

      Hello J3W3LS, the size options are listed in the drop down options menu, we currently have a king option in stock, which will fit an eastern king. Thanks for shopping with us!

  • Q:

    "This encasement keeps out and in bed bugs? Bite proof? certified? It's not quite clear on those points..."

    • A:

      Hello mystystar, thank you for your inquiry. Unfortunately, the information you have requested is currently unavailable. We will continue to try and answer this for you. You will receive an email notification once an answer is posted. Have a great day.

  • Q:

    "do you find yourself getting hot at night with this type of material Shell materials: 100-percent polyester with TPC coating Backing materials: 100-percent polyurethane"

    • A:

      Hi rusuziq2, we have not had any complaints about getting hot at night with this item. We hope this helps. Thank you for shopping with us.

  • Q:

    "My mattress is only about 7 1/2" high. Will this be too big?"

    • A:

      Hello sydneylou1, It accommodates mattresses from 9 to 14 inches high. However, that will leave you room for adding a topper if you desire. Thank you 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. 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.