Rest Assure Bite Barrier Waterproof Twin XL-size Mattress Encasement

Today: $52.99
Out of Stock

Club O Gold Members Earn

$2.65 | 5% Rewards*




5% Rewards

Earn even faster

Free Shipping

Never pay extra*

Exclusive Rewards

Save big-- up to 40%

Exclusive Offers

Straight to your inbox

5% Dining Rewards

Get paid to go out tonight

ITEM# 14182499
    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#: 14182499

Designed to protect mattresses against spills, accidents and stains, this twin XL-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.

  • 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
  • Dimensions: 39 inches wide x 80 inches long
  • Care instructions: Machine washable

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, Polyurethane
Type Allergy Protector, Bed Bug Protector, Complete Protection, Dust Mite Protector, Encasement, Mattress Protector, Waterproof Protector
Product Features Allergy Bedding
Size Twin XL
Dimensions See Details
Warranty 10 year Limited Manufacturer
Model Number KNE -TL
Country of Origin China

Product Reviews

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

  • Works to perfection
    Verified Purchase

    Bought this because we had bedbugs (aaaargh), got place treated, and didn't want a return event. They are soft and supple, and have worked very well. Even spills don't go through. Recently I washed and bleached them back to looking like new. Easy to put on (no pulling, huffing and puffing!). Every home should have these.

    Read More
  • for the dorm
    Verified Purchase

    I was pleasantly surprised by the velcro tabs over the ends of the zippers.

    Read More
  • Nice Mattress Encasement
    Verified Purchase

    I purchased this for my son's dorm room and am very pleased with it. The encasement can be separated into two pieces (making it easy for one person to put around the mattress), or leave attached. Seeing how many college mattresses can be a haven for bed bugs I'm glad I purchased one that completely encases the mattress.

    Read More
  • Mattress cover
    Verified Purchase

    Fits mattress perfectly. Is so easy to put on. It is sturdily constructed and I'm sure will last a long time.

    Read More
  • mattress cover
    Verified Purchase

    Good quality. Easy to put on mattress. Has zipper all around but attached in one section so both halves of cover stay together just right. We got it for 8" mattress but has room for thicker mattress.

    Read More

Questions & Answers

  • Q:

    "will this encasement protect against bed bug? the description states protect mattresses against spills, accidents and stains"

    • A:

      Hello mlbentley1, Yes this protects against bed bugs. Thank you for shopping with us!

  • Q:

    "The description states that this cover will accomodate mattresses up to 14". I've purchased other covers that said they would fit mattresses up to 14" but have had to send them back because they didn't. Before buying, I just want to make sure that this will fit over my son's college mattress and topper. The mattress is 10" and the topper that is 2". Thank you."

    • A:

      Hello kfang, this should fit the mattress and topper no problem. Another customer reviewed that they used it on an 8 inch mattress and it had room for a much thicker mattress. I hope this helps you. Thank you for shopping with us.

  • Q:

    "This mattress specifically mentions bed bug protection. Is it from the TPC coating? What is a TPC coating? Is this a chemical in the cover? As far as I can see, the TPC coating is the only difference between this mattress cover and a similar one with a lower price."

    • A:

      Thank you for your question. The bed bug protection is not from the TPC coating. The TPC coating is a polyurethane laminate that aids in making the encasement waterproof and is breathable for a cool comfortable sleeping surface. The bed bug defense comes from the internal protective flap and the Velcro closure over the zipper.

  • Q:

    "It doesn't tell you if the bottom and all 6 sides are water proof on this encasement. We need all six sides to be waterproof due to possible water from sprinkler or rain being blown onto our outdoor aluminum day bed frames. These have slats that will allow water to hit the underneath of the mattresses on occasion. They are pretty protected with a covered patio but not when there is light to severe wind during the auto sprinkler over night or rain. Please let people know if these are water proof on all six sides not just the upper one. Thank you."

    • A:

      This is waterproof on the sides and top only.

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.