Olympic Queen 66x80 Waterproof Mattress Protector - Fitted Super Queen

Our review of the Olympic Queen 66x80 waterproof mattress protector finds it best for shoppers who need reliable, everyday mattress defense without sacrificing sleep comfort. Designed as a fitted sheet style for super queen mattresses, this cover stands out because of its full waterproof protection on all five sides and a soft, noiseless surface that stays comfortable under sheets. If you want to protect a mattress up to 16in deep from spills, dust and allergens while keeping a natural, quiet feel, this protector is worth considering.

Key Features

• Full waterproof coverage: A polyurethane inner lining blocks liquids on the top and four sides so spills and accidents are kept away from mattress layers.
• Fitted sheet style: Elastic all around provides a snug fit on a 66x80 in super queen mattress and accommodates mattresses up to 16 in deep.
• Comfortable surface: The stretchable polyester top is breathable and designed to be soft and noiseless so sheets lay smoothly without crinkling.
• Durable construction: Polyester surface with polyurethane lining is built for daily use and repeated machine washing without losing protective function.
• Hypoallergenic protection: The cover helps keep dust mites and common allergens from reaching the mattress surface, supporting a cleaner sleep environment.

Who It's For

This protector is ideal for families with children or pets who regularly need liquid protection and want a fitted, easy-to-install solution for oversized super queen mattresses. It also suits allergy-prone sleepers who appreciate a hypoallergenic barrier and for anyone who dislikes the plasticky feel common to some waterproof covers.

Shoppers who need specialized cooling fabrics, ultra-thin travel protectors, or multi-layer mattress encasements with zipper closures should look elsewhere; this product is a fitted, top-and-sides protector rather than a full encasement with a zipper or advanced cooling technology.

Pros & Cons

Pros

• Excellent fit for 66x80 in super queen beds and mattresses up to 16 in deep.
• Waterproof on all five sides thanks to a polyurethane inner lining, protecting mattress layers from spills.
• Soft, stretchable polyester surface that remains quiet and comfortable under sheets.
• Machine washable and built for long-term, everyday protection.

Cons

• Some users report mixed experience with waterproofing performance, so very heavy or prolonged spills may still present risk.
• Not a full zippered encasement, so it does not protect the mattress bottom against all exposures.

Specifications

Our Verdict

The Olympic Queen 66x80 in waterproof mattress protector is a practical choice for those who want dependable daily protection in a fitted, quiet cover that feels like fabric rather than plastic. It offers strong value for families and allergy-conscious sleepers, though buyers seeking full encasement or enhanced waterproof assurance for extreme spills should consider alternative styles.

Frequently Asked Questions

Will this cover fit thick mattresses?
Yes, it is designed to fit mattresses up to 16 in deep and secures with elastic all around.

Is the protector noisy under sheets?
No, the stretchable polyester surface is described as soft and noiseless so sheets remain comfortable.

Does it fully stop liquids?
The protector has a polyurethane waterproof lining on all five sides to block liquids, though some users report mixed experiences with heavy or prolonged spills.