Manchester Mills Protect360 Mattress Encasement

King

Best for up to 15" deep mattresses

$55.99

Price from our latest catalog update. Checkout, delivery and returns happen at our retail partner.

Fits up to 15" deepMeasure seam to seam first
Locking zipperCovers all six sides
Price from our last updateThe partner checkout has the final price
Sold by our retail partnerDelivery and returns are theirs

What you get

Top: polyester fabric.
Closure: locking zipper.
Covers all six sides of the mattress or box spring.
Waterproof, as the maker states.

How to use it

Measure the mattress from the bottom seam to the top, pillow-top included.
Zip the cover shut all round, and close the end of the zipper the way the maker shows.
Leave it on: bed bugs zipped inside die there in time.
Check the cover for holes and tears when you change the sheets.
Pair it with interceptor cups: a cover does not stop a bug from climbing onto the bed.

Will it fit?

Sizes: King. The maker cuts it for up to 15" deep mattresses.

Find the cover for your bed size and depth.

King encasement with a zipper on three sides

Turning or rotating your mattress does not mean taking this cover off, since a 2-way zipper runs along three sides. It comes in King only and fits mattresses up to 15 inches deep. A hook-and-loop strip backs the zipper, and the maker calls the pair a triple lock that bugs cannot cross in either direction.

All six sides are waterproof, so the cover catches a spill whichever way you flip the bed. The polyester fabric carries Microban product protection, according to the maker. Manchester Mills supplies sheets, towels and pillows to hotels of every size, and this encasement is its version for the bed in your own home.

Manchester Mills Protect360 Mattress Encasement is part of the Bed Bug Blocker collection, on the mattress encasements shelf.

Side by side
Feature	Manchester Mills Protect360 Mattress Encasement	Utopia Bedding Zippered Mattress Encasement	Linenspa Zippered Waterproof Mattress Encasement	SureGuard Mattress Encasement
Sizes	King	Twin, Twin XL, Full, Full XL, Queen, King, California King	Twin, Twin XL, Full, Full XL, Queen, King, California King	Twin, Twin XL, Full, Full XL, Queen, King, California King
Fits depth	up to 15" deep	6-15" deep	up to 12" deep	6-20" deep
Top	polyester fabric	polyester fabric	not printed	cotton terry top
Closure	locking zipper	zipper all round	zipper all round	zipper all round
All six sides	Yes	Yes	Yes	Yes
Waterproof	Yes	Yes	Yes	Yes
Maker says lab-tested	No	No	No	Yes
Rating	4.3 (36)	4.6 (195,500)	4.6 (39,100)	4.6 (21,700)
Price	$55.99	from $18.99	from $19.10	from $47.97
Buy

How to use the Manchester Mills Protect360 Mattress Encasement follows the EPA and the University of Kentucky: zip it shut, leave it on for a year, and stand the bed legs in cups.

This is general information about keeping bed bugs out of a bed, not pest control or medical advice. A licensed pest professional, your doctor and the maker's own instructions come first.

What the public sources say

U.S. EPA, "Do-it-yourself Bed Bug Control". Says to set interceptors under each leg of infested furniture, move it a few inches off the walls with no linens touching the floor, check and clean the interceptors every week, keep inspecting at least every 7 days, and use covers that seal mattresses and box springs so bed bugs inside die. Read October 30, 2026.
University of Kentucky Entomology, ENTFACT-636 "Bed Bugs". Says bed bugs zipped inside an encasement eventually die, that an encasement does not stop a bug from climbing onto the bed, that a trap under each leg with the bed pulled off the wall makes the bed an island, and that a dryer at medium-to-high heat for 10 to 20 minutes kills all life stages. Read October 30, 2026.

Each of these sources is linked in our guide on interceptor cups.

Questions

What Bed Bug Blocker shoppers ask about the Manchester Mills Protect360 Mattress Encasement

Which sizes does the Manchester Mills Protect360 Mattress Encasement come in?

King, cut for up to 15" deep mattresses. The Manchester Mills Protect360 Mattress Encasement comes in this one option, at $55.99.

Does the Manchester Mills Protect360 Mattress Encasement close all six sides?

Yes: the Manchester Mills Protect360 Mattress Encasement zips around the whole mattress, bottom included, with a locking zipper.

Can you wash the Manchester Mills Protect360 Mattress Encasement?

Yes, the Manchester Mills Protect360 Mattress Encasement goes in the washer by the care label Manchester Mills sews in. Its waterproof membrane wears out faster under high heat, so dry the Manchester Mills Protect360 Mattress Encasement on medium or low.