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JT Eaton
JT Eaton Lock-Up Standard Encasement Twin XL

JT Eaton Lock-Up Standard Encasement Twin XL

Best price now

$36.99at Tractor Supply CoObserved at 7:10 AM

Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.

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Our take on the JT Eaton Lock-Up Standard Encasement Twin XL

The JT Eaton Lock-Up Standard Encasement is a zippered, waterproof mattress cover in white polyester, sized for Twin XL beds. It fully encloses the mattress to keep out bed bugs, dust mites and spills. Its best new price is $36.99 at Tractor Supply Co as of November 7, 2026, the only new price listed.

Best forBed bug and dust mite protectionDorm and guest room Twin XL mattressesHouseholds with kids or petsRenters who want a removable, washable barrier
Pros
  • Full encasement with zipper covers all six sides
  • Waterproof polyester shields the mattress from spills
  • Twin XL sizing fits dorm and extra-long beds
  • Machine washable for easy cleaning
  • Low price for a full encasement
Cons
  • Polyester can sleep warm and feel crinkly
  • Zipper closure needs care to seat fully
  • White fabric shows stains
  • Only one new price listed, so comparison is limited

JT Eaton Lock-Up Standard Encasement Twin XL prices at every store

  • Tractor Supply CoNew

    Availability unknown

    $36.99+ $13.99 shippingObserved at 7:10 AM
    Visit Tractor Supply Co

Store links may earn us a commission. Price via Klarna.

JT Eaton Lock-Up Standard Encasement Twin XL price history

Lowest price we've seen: $36.99 on Nov 7 at Tractor Supply Co. Tracked across 1 store since Nov 7.

Specifications

Bed Size
Twin XLSource
Color
WhiteSource
Material
PolyesterSource
Features
WaterproofSource

Questions and answers

Does it really keep bed bugs out?
A zippered encasement like this seals the mattress on all sides, which is the standard way to trap bed bugs inside and keep new ones from nesting. Check the zipper and seams after each wash.
Will it fit a Twin XL mattress?
It is made for Twin XL, the 39 by 80 inch size common in dorms. It will not fit a standard Twin, which is 5 inches shorter.
Is it waterproof?
Yes, the polyester shell is listed as waterproof, so spills and accidents stay off the mattress. Wash it according to the care label to keep the barrier working.
How do I wash it?
Machine wash on a gentle cycle and tumble dry low, then check the zipper before refitting. Hot drying can shrink or damage the waterproof layer.
Is $36.99 a good price?
It is the only new price listed as of November 7, 2026, at Tractor Supply Co. Compare it with other Twin XL encasements, which often run higher for zippered, waterproof models.
Does it change how the mattress feels?
A thin polyester layer adds little padding, and some sleepers notice a slight crinkle. It is meant as a protective barrier, not a comfort layer.
Where is the JT Eaton Lock-Up Standard Encasement Twin XL cheapest?
At Tractor Supply Co, for $36.99, as of our latest check.