Deep Pocket Waterproof Mattress Pad — King 78"×80", Fits 18" Mattresses, 3M Scotchgard, Diamond Quilting, OEKO-TEX Certified | $69.20
MATTRESSES & TOPPERS · MATTRESS PADS & PROTECTORS
3M Scotchgard Moisture Management. Waterproof Reverse Fabric. Diamond Quilting. Deep Pocket Knit Skirt Fits Up to 18" Mattresses. OEKO-TEX Certified. A King Mattress Pad That Protects, Breathes, and Launders at Home — $69.20.
King · 78"W × 80"L × 14"D · Fits mattresses up to 18" deep · 3M Scotchgard Moisture Management Treatment microfiber pad · Waterproof reverse fabric · Medium weight antibacterial polyester fill · Classic diamond quilting · 5" frame · Deep pocket knit skirt · OEKO-TEX certified · Machine washable · Ships compressed — expands within 72 hours · $69.20
Quick Answer: A King mattress pad (78"W × 80"L) with a 3M Scotchgard Moisture Management Treatment microfiber surface that wicks moisture and releases stains, a waterproof reverse fabric layer, medium weight antibacterial polyester fill, classic diamond quilting, and a deep pocket knit skirt that fits mattresses up to 18" deep. OEKO-TEX certified — no harmful substances. Machine washable. Ships compressed, expands within 72 hours. $69.20.
A mattress pad performs two functions that most bedding doesn't: it protects the mattress beneath it and it adds a layer of sleep comfort above it. The Deep Pocket Waterproof Mattress Pad combines both in a single King-sized pad that addresses the most common mattress protection requirements — moisture, staining, and allergen exposure — without the stiff, crinkly surface feel and restricted mattress depth that lower-quality waterproof pads typically deliver.
The 3M Scotchgard Moisture Management Treatment on the microfiber sleeping surface is the key feature: it actively wicks moisture away from the body and toward the pad's edges, and it helps release stains more readily than untreated microfiber when the pad is washed. This is moisture management at the sleeping surface, not just a passive waterproof barrier — the pad breathes rather than trapping heat, which matters for a cover layer that is in direct contact with the body throughout the night. The waterproof fabric is on the reverse side, providing the structural moisture barrier between the sleep surface and the mattress without creating the clammy, impermeable sleeping surface that causes heat build-up in untreated waterproof pads.
Four-Layer Construction. Each Element Chosen for a Specific Function.
LAYER 1 — SLEEP SURFACE
3M Scotchgard Moisture Management Treatment Microfiber
The sleeping surface of this mattress pad is a microfiber fabric treated with 3M's Scotchgard Moisture Management Treatment — a surface treatment that does two things simultaneously. First, it wicks perspiration and moisture away from the body and channels it toward the pad's edges where it can evaporate, maintaining a drier sleep surface through the night. Second, it helps stains release more readily during washing — the treatment reduces the adhesion of liquid stains to the fibre surface, making them easier to flush out in a machine wash cycle. This is meaningfully different from an untreated microfiber surface that absorbs moisture and retains stains.
LAYER 2 — FILL
Medium Weight Antibacterial Polyester Fill
The medium weight polyester fill adds a layer of comfort cushioning between the sleep surface and the mattress — softening the sleep surface slightly without the loft of a mattress topper. Antibacterial treatment in the fill inhibits the growth of odour-causing bacteria within the pad material, which is particularly relevant for a pad that sits between a potentially sweating body and a mattress that is difficult to wash. Medium weight is the practical standard for a mattress pad — enough fill to feel present and comfortable, not so much that it creates heat retention or bulk.
LAYER 3 — BARRIER
Waterproof Reverse Fabric
The waterproof barrier is on the reverse face of the pad — between the fill layer and the mattress surface below. This placement means the waterproof layer never contacts the sleeping body directly, avoiding the crinkly, clammy, heat-trapping sensation of single-layer waterproof pads where the waterproofing is at the sleep surface. Any moisture that passes through the treated microfiber and fill layers is stopped at the reverse waterproof fabric and prevented from reaching the mattress. For a mattress that cannot be machine washed, this waterproof reverse layer is the structural protection against spills, sweat, and accidental moisture.
DETAIL — QUILTING
Classic Diamond Quilting — 5" Frame
The classic diamond quilting pattern anchors the fill in place — preventing it from shifting, clumping, or migrating to the edges of the pad during sleep or washing. The 5" quilting frame creates a consistent, even distribution of fill across the entire King sleeping surface. A pad without quilting or with minimal stitch density allows the fill to bunch, which creates uneven pressure distribution and an uneven sleep surface over time. Diamond quilting is the standard in quality mattress pad construction.
DETAIL — FIT
Deep Pocket Knit Skirt — Fits Up to 18" Mattresses
The knit elasticised skirt stretches to fit King mattresses up to 18" deep — accommodating the premium hybrid and pillow-top mattresses in the catalog, including the 15" Diamond Mattress Summit Hybrid and Tribute Luxe lines. Standard mattress pad skirts fit 9"–12" mattress depths; a King pad on a 15" or taller mattress with a standard skirt will not stay on the corners during sleep. The deep pocket knit skirt eliminates this problem — it stretches around the full mattress depth and holds the pad in place through the night and through washing cycles.
OEKO-TEX Certified — No Harmful Substances in Any Component.
OEKO-TEX Standard 100 certification covers every component of the mattress pad — the microfiber sleep surface, the polyester fill, the waterproof reverse fabric, and the knit skirt — testing each for over 100 harmful substances including pesticides, heavy metals, formaldehyde, pH extremes, and allergenic dyes. Certification confirms that no component of the pad contains substances at levels that are harmful to human health. This is particularly meaningful for a mattress pad that lies directly beneath a fitted sheet and in sustained contact with a sleeping body for 6–8 hours per night.
OEKO-TEX Standard 100 is an independent certification by the OEKO-TEX Association — a Swiss-Austrian textile industry body — that tests textile products at every stage of processing for harmful chemical substances. It is one of the most widely recognised independent textile safety certifications globally, covering both the finished product and its constituent materials.
Deep Pocket vs Standard Pocket — Why Mattress Depth Matters for Mattress Pad Fit.
| Mattress Type | Typical Depth | Standard Pocket Pad Fits? | Deep Pocket Pad (this) Fits? |
|---|---|---|---|
| Standard innerspring | 9"–11" | ✅ Yes | ✅ Yes |
| Mid-profile foam or hybrid | 10"–14" | ⚠️ Marginal — may pull at corners | ✅ Yes |
| Premium hybrid (Tribute Luxe, Summit Hybrid) | 15" | ❌ No — corners pull off during sleep | ✅ Yes — up to 18" |
| Tradition 2.0 Luxury (tufted) | 15.5" | ❌ No | ✅ Yes — up to 18" |
| Pillow-top or extra-deep mattress | Up to 18" | ❌ No | ✅ Yes — maximum depth |
Who Is This Mattress Pad For? 4 Scenarios.
Scenario 1: You have a premium King mattress — 15" or taller — that needs a waterproof pad that actually fits without pulling off the corners.
Standard mattress pad skirts are sized for 9"–12" mattress depths. A premium hybrid or natural materials mattress at 15"–15.5" will cause a standard pad to pop off the corners during sleep, negating the protection entirely. The deep pocket knit skirt on this pad fits mattresses up to 18" — covering the Tribute Luxe and Summit Hybrid at 15", the Tradition 2.0 at 15.5", and any pillow-top or extra-deep mattress in the home. For a $754–$1,735 mattress investment, a pad that fits correctly is essential.
Scenario 2: You want a waterproof mattress protector that breathes — one that doesn't create a hot, clammy surface the way many waterproof pads do.
Single-layer waterproof pads place the barrier fabric at the sleep surface — this creates the characteristic crinkle sound and clammy feel of budget waterproof mattress protectors. This pad places the waterproof layer on the reverse, away from the body, with a treated microfiber sleep surface and breathable fill between the body and the barrier. The 3M Scotchgard treatment actively wicks moisture away from the surface rather than blocking it, allowing the pad to breathe while still providing full mattress waterproofing from the reverse layer.
Scenario 3: You need a chemically safe mattress pad — OEKO-TEX certified — for a bedroom with chemical sensitivities or allergy concerns.
OEKO-TEX Standard 100 certification covers every component of this pad — all tested for over 100 harmful substances. For sleepers with chemical sensitivities, formaldehyde concerns, or allergies to dyes and finishes commonly found in untested textiles, the OEKO-TEX certification provides independent confirmation that the pad is safe for sustained close-body contact through the night. The antibacterial fill also addresses biological allergen accumulation within the pad material over time.
Scenario 4: You want a King mattress pad that ships compressed, sets itself up without effort, and launders easily at home.
This pad ships compressed into a single box — manageable delivery regardless of access limitations. Unbox, unroll on the King mattress, and allow up to 72 hours for the fill to decompress to its full loft. Machine washable — the full King pad launders in a standard large-capacity home washer without professional cleaning. The 3M Scotchgard stain-release treatment means most stains come out in a single wash cycle rather than requiring pre-treatment or repeated washing.
Product Specs at a Glance
| Size | King — 78"W × 80"L × 14"D |
| Mattress Depth Compatibility | Up to 18" — deep pocket knit skirt |
| Sleep Surface | 3M Scotchgard Moisture Management Treatment microfiber — wicks moisture, releases stains |
| Fill | 100% polyester — medium weight, antibacterial |
| Waterproof Layer | Waterproof fabric on reverse — barrier between fill and mattress |
| Quilting | Classic diamond quilting — 5" frame, anchors fill in place |
| Skirt | Deep pocket knit elasticised skirt — stretches to fit up to 18" mattress depth |
| Certification | ✅ OEKO-TEX Standard 100 — no harmful substances in any component |
| Machine Washable | ✅ — large-capacity home washer recommended for King size |
| Packaging | Ships compressed in one box — unroll and allow up to 72 hours to fully expand |
| Price | $69.20 |
| SKU | D0102HRGFXX |
Care Instructions. Machine Washable. Large-Capacity Washer Recommended.
Large-capacity washer recommended: A King mattress pad (78"W × 80"L) requires a large-capacity front-load or top-load washer for best results — a small-capacity machine will not wash the pad evenly and may cause fill clumping. A commercial laundromat washer (20 lb+ capacity) handles the King size well if a home large-capacity machine is not available.
- Machine washable — warm water, gentle cycle; the 3M Scotchgard treatment aids stain release during washing
- Tumble dry low — low heat; remove promptly to prevent fill clumping; diamond quilting holds the fill in position through the drying cycle
- No bleach — bleach degrades both the 3M Scotchgard treatment and the waterproof reverse fabric
- No high heat — avoid high dryer heat which can damage the waterproof reverse layer and the knit skirt elasticity over time
- Placing a fitted sheet over the pad — as recommended by the manufacturer — keeps the pad cleaner between washes and prevents it from sliding or bunching during sleep
Complete the King Bed — What Pairs With This Mattress Pad.
- Sheets & Pillowcases — as the manufacturer recommends, a fitted sheet over the mattress pad keeps it clean and prevents sliding; browse King-sized fitted sheets in the Sheets & Pillowcases collection; deep-pocket sheets (16"+ depth) are required for mattresses at 15" or taller
- Mattresses & Toppers — this pad's deep pocket skirt fits mattresses up to 18" deep, including the Diamond Mattress Tribute Luxe (15") and Tradition 2.0 (15.5") in the catalog; if you are purchasing a new mattress, this pad is confirmed compatible with all Diamond Mattress models at beddingandcomfort.com
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Frequently Asked Questions
What does 3M Scotchgard Moisture Management Treatment do on a mattress pad?
The 3M Scotchgard Moisture Management Treatment is a surface treatment applied to the microfiber sleeping surface that does two things: it wicks moisture away from the body and toward the pad edges where it can evaporate, maintaining a drier sleep surface through the night; and it reduces the adhesion of liquid stains to the microfiber fibres, making them easier to release during a machine wash cycle. This is an active moisture management treatment at the sleep surface — different from, and complementary to, the waterproof reverse layer that provides the structural barrier between the pad and the mattress below.
Will this pad fit my 15" or 15.5" Diamond Mattress?
Yes — the deep pocket knit skirt stretches to fit mattresses up to 18" deep, which covers all Diamond Mattress models available at beddingandcomfort.com including the Tribute Luxe (15"), the Summit Hybrid (15"), and the Tradition 2.0 (15.5"). Standard mattress pad skirts (9"–12" pocket depth) will not stay on a 15" mattress and should not be used with these models. This pad is the compatible protector for all Diamond Mattress products in the catalog.
If the reverse is waterproof, will the pad feel hot or make noise during sleep?
No — the waterproof layer is on the reverse, away from the sleeping body. The sleep surface is a breathable treated microfiber with the 3M Scotchgard moisture-wicking treatment, and the polyester fill between the two layers adds thermal buffering. The waterproof barrier causes no direct contact sensation for the sleeper and does not create the crinkle sound associated with vinyl or plastic waterproof covers. This construction is specifically designed to provide waterproofing without compromising sleep comfort or temperature.
How long does it take to expand after unboxing?
The manufacturer recommends allowing up to 72 hours for the compressed pad to fully expand to its finished loft after unboxing and unrolling. The pad is compressed for efficient shipping — the 100% polyester fill requires time to decompress from the packaging compression. You can place the pad on the mattress immediately after unboxing and allow it to expand in place. It is functional from day one, but the full loft and even fill distribution are achieved within the 72-hour expansion period.
What is OEKO-TEX Standard 100 certification?
OEKO-TEX Standard 100 is an independent certification issued by the OEKO-TEX Association that tests every component of a textile product for over 100 harmful substances — including pesticides, heavy metals, formaldehyde, pH extremes, and allergenic colourants. Certification confirms that no component contains any of these substances at levels harmful to human health. For a mattress pad used in sustained close-body contact overnight, OEKO-TEX Standard 100 is the most comprehensive independent chemical safety certification available for bedding textiles.
Part of the Mattress Pads & Protectors collection at beddingandcomfort.com · Every Night Deserves a First Class Bed.
