Split King Mattress Encasement 39in x 80in (2PCs) - Waterproof

Our review of the Split King Mattress Encasement 39in x 80in (2PCs) finds it best for anyone wanting full containment of a split king setup without the fumble of awkward wraps. The set contains two Twin XL encasements that completely zip around each mattress half, offering a simple, full-coverage solution for allergy relief and spill protection. The single biggest reason to consider this product is the six-sided zippered design with a Velcro zipper seal that makes it straightforward to fully enclose a mattress and keep out liquids, dust and allergens.

Key Features

• Two-piece set: Includes two Twin XL 39in x 80in encasements so a Split King mattress is protected on both sides without cutting or sewing.
• Six-sided zippered encasement: The zipper wraps fully around three sides and the Velcro zipper seal helps secure the closure so bed bugs, dust and allergens are kept out.
• Waterproof lining: A polyurethane inner lining blocks liquids and moisture to protect the mattress from spills, accidents and pet messes.
• Hypoallergenic construction: The impenetrable cover reduces exposure to dust, pet hair and mattress contaminants for easier breathing and allergy relief.
• Comfortable and quiet: Stretchable polyester surface fabric is breathable, soft to the touch and designed to be noiseless under sheets for undisturbed sleep.
• Durable and washable: Made with polyester and polyurethane, the encasements are machine washable and built to fit mattresses 12in to 16in deep for lasting use.

Who It's For

This product is ideal for families with kids or pets who need reliable liquid protection and for allergy sufferers who want a full barrier against dust mites and pet dander. It also suits anyone with a split king mattress or box spring who prefers working with two Twin XL pieces rather than a large single encasement.

Those who want a simple, zip-around installation will appreciate the design; however, shoppers seeking a thinner, fitted mattress pad rather than a full encasement should look elsewhere since this is a six-sided protective cover intended for complete enclosure rather than a light topper.

Pros & Cons

Pros

• Complete six-sided coverage provides strong protection from bed bugs, dust and stains.
• Waterproof polyurethane lining guards against spills and pet accidents.
• Soft, stretchable surface fabric is quiet under sheets and comfortable to sleep on.
• Two-piece Twin XL set fits split king configurations without modification.

Cons

• Zipper quality receives mixed feedback, so some users may find it less robust over long-term heavy use.
• Some customers report variable waterproof performance in rare cases, so careful sealing and inspection is advised.

Specifications

Our Verdict

The Split King Mattress Encasement 39in x 80in (2PCs) is a practical, value-oriented choice for anyone needing full mattress containment and reliable protection against liquids and allergens. Its six-sided zippered design and washable construction make it a sensible long-term option for families, pet owners and allergy sufferers, though buyers should be aware of mixed reports on zipper robustness and inspect the seal after installation.

Frequently Asked Questions

Will these covers fit a split king mattress?
Yes; the package contains two Twin XL encasements 39in x 80in which together protect a split king mattress.

Are the encasements truly waterproof?
They have a polyurethane inner lining that blocks liquids, but customers report varied experiences so ensure the zipper and Velcro seal are fully closed.

Can I machine wash these covers?
Yes, the encasements are machine washable for easy cleaning and maintenance.