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White king-size mattress encasement, stretch knit fabric, 78 by 80 inches, 18 inch depth

LOCK-UP 83KGENC Mattress Protector King 78x80 White

SKU CH-3WF8-6ZFD7

King-size mattress encasement with stretch-knit fabric, double-reinforced corners and 18-inch depth protects against bed bugs, dust mites and allergens

  • Color familyWhite
  • Product typeBedding
  • Product colorWhite
  • Stretch-knit fabric encases mattress for comfortable barrier protection
  • Double-reinforced corners add durability at stress points
  • Blocks bed bugs dust mites and allergens for healthier sleep
  • Fits king mattress 78 by 80 inches up to 18 inches deep
  • Machine washable cold to medium dry low to medium heat

King-Size Encasement with 18-Inch Depth

The LOCK-UP 83KGENC mattress protector fits a king-size bed measuring 78 inches wide by 80 inches long. Its stretch-knit fabric expands to cover mattresses up to 18 inches thick. Double-reinforced corners keep the encasement secure through regular use and washing.

Sleepers Needing Full Allergen Enclosure

This protector suits anyone who wants a complete barrier against bed bugs, dust mites and common allergens. The zippered encasement seals the entire mattress and box spring. Buyers who only need a fitted sheet-style top cover or who prefer a non-encasing pad should look at a different style.

18-Inch Maximum Mattress Thickness

The single specification that decides fit is the 18-inch depth allowance. Measure your mattress and any topper combined; if the total height exceeds 18 inches the encasement will not close properly. If the combined height is 18 inches or less, this king-size protector will fully enclose the sleep surface.

How it compares

Measured against everything we stock in Bedding Sets & Throw Blankets, at today’s prices. Recalculated every night.

Price $36.99
Pricier than about 58% of the 13 comparable items (median $31.99).

Specifications

Product
Brand nameLOCK-UP
Product typeBedding
Product colorWhite
Color familyWhite

Questions about this item

Does the stretch-knit fabric trap heat when the encasement stays on the mattress all day?

The stretch-knit fabric is breathable and designed for continuous use without trapping excess heat.

What mattress depth is required so the 18-inch encasement fits without slipping?

The encasement fits mattresses up to 18 inches thick and has double-reinforced corners to stay in place.

Will the king-size 78-by-80-inch dimensions cover a standard king box spring as well as the mattress?

Yes, the 78-inch by 80-inch encasement is sized for a standard king mattress and box spring combination.

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