Sleep & Beyond myProtector Review: Wool-Filled, Waterproof, and Actually Washable

Jeff M. evaluates products based on technical specifications, manufacturer data, and aggregated owner feedback rather than direct long-term personal use.

Standard waterproof protectors use a thin sheet laminated directly to a plastic membrane. They stop liquid but reflect body heat, which is why most people who have tried one report sleeping hot on it. The myProtector inserts a wool fill layer between the cotton surface and the waterproof membrane, changing the thermal behavior of the protector without compromising the waterproofing.

Specifications

How the Construction Works

Most waterproof protectors fail thermally because the waterproof membrane creates a vapor barrier. Body heat and humidity accumulate between the sleeper and the plastic layer with no place to go.

The myProtector's wool fill layer works because wool absorbs moisture vapor before it reaches the membrane. The moisture is pulled away from the skin as vapor — before it condenses into the liquid that creates the clammy sensation. The bioplastic membrane blocks liquid from reaching the mattress while remaining more breathable than PVC or vinyl.

The result is a protector that performs its waterproofing function without the thermal penalty that makes most people abandon waterproof covers after one season.

Washability: The Shropshire wool is processed specifically to be machine washable — this is not standard for wool products. Use cold water with mild detergent. Dry on low heat or air dry. High heat damages the waterproof membrane, not the wool — this is the most common owner error that causes early failure of waterproof covers generally.

18-inch deep pocket skirt: Fits standard mattresses and mattresses with a topper already installed. The elasticated skirt stays in place on deep builds.

Who This Is For / Who Should Skip It

This protector is the right call if:

• You have tried waterproof covers before and returned them because they slept hot — the wool buffer addresses that specific complaint
• You are managing incontinence, bedwetting, or pet access — the construction handles repeated saturation events and machine washing without delaminating
• You have a new mattress under warranty — most warranties are voided by any visible staining regardless of cause; a $150–$200 protector insures against that loss
• Night sweats are a regular occurrence — sweat accumulation degrades foam cores over time; the protector prevents that salt and urea buildup from reaching the mattress

Skip it if:

• Budget is the primary constraint — at $139+ this is not a $30 protective cover; if the mattress it is protecting is not worth the investment, a simpler option makes more sense
• You want a paper-thin protector with no added loft — the wool fill adds a slight surface layer; it is not a topper, but it is not imperceptible either
• Your mattress is old and has no active moisture risk factors — a simple cotton cover is adequate in that scenario

Pros and Cons

Pros:

• No plastic crunch sound under movement — the wool layer and bioplastic membrane are silent
• 18-inch pocket depth accommodates deep mattresses and topper combinations
• OEKO-TEX certified — no harmful VOCs or chemical fire retardants
• Wool is naturally antimicrobial and dust-mite resistant
• Machine washable without membrane delamination across normal wash cycles

Cons:

• Longer drying time than synthetic protectors — wool holds moisture and requires low-heat drying
• Higher upfront cost than non-filled waterproof options
• Heavier when wet — requires careful handling to avoid stretching the skirt elastic

Aggregated Owner Feedback

Based on 111 verified reviews with a 5-star average:

Not sleeping hot is the most consistently mentioned benefit — owners frequently note this specifically as a contrast to previous waterproof covers they had used and returned.

Protection reliability in active-use scenarios — pet accidents and child-related spills — appears in multiple reviews as the specific reason owners report satisfaction rather than just comfort.

Deep-mattress fit is noted positively by owners with 15"+ builds, with the elasticated skirt holding position without slipping.

FAQ

Is it actually machine washable? Yes. The Shropshire wool is processed to handle machine cycles — this is not standard for wool products and is specific to Sleep & Beyond's construction. Cold water, mild detergent, low-heat or air dry. The membrane is the component damaged by high heat, not the wool.

Will it fit a deep mattress with a topper? The 18-inch pocket is designed for this. A standard mattress plus a topper should fit within that depth. Measure your total stack before ordering if you are near that limit.

Does it protect against bed bugs? No. This is a 5-sided fitted-sheet style protector — it covers the top and sides but not the bottom of the mattress. Full bed bug protection requires a 6-sided zippered encasement.

Does the wool fill feel lumpy? No. The wool is quilted into small sections that prevent shifting or clumping. The surface is smooth with a slight cushion — owners do not report texture irregularity as a complaint.

Related:

• When You Actually Need a Waterproof Mattress Protector
• Is Wool Bedding Actually Comfortable?
• Sleep & Beyond myWoolly Latex Topper Review
• Best Organic Bedding for Better Sleep