10 Best Split King Mattress Protectors in 2026
Updated on
April 2026
#1
Best Choice
- Waterproof TPU membrane protects against spills, sweat, and urine
- Soft brushed fabric with microfiber filling for comfortable sleep
- Durable design provides long-lasting protection against stains and liquids
- Quiet cover absorbs fluids and allows air to circulate, keeping the bed cool
- Machine washable; easy care with cold wash and low tumble dry
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- Waterproof TPU membrane protects against spills, sweat, and urine
- Soft brushed fabric with microfiber filling for comfortable sleep
- Durable design provides long-lasting protection against stains and liquids
- Quiet cover absorbs fluids and allows air to circulate, keeping the bed cool
- Machine washable; easy care with cold wash and low tumble dry
#2
- Waterproof polyurethane backing protects against perspiration, bedwetting, liquids, and stains; made from vinyl-free materials safe for children.
- Soft bamboo viscose jersey surface offers moisture-wicking properties and a cooler feel compared to traditional mattress protectors, ensuring comfortable sleep.
- Designed to fit snugly over adjustable beds, maintaining a secure fit and preserving the original mattress feel without added padding or quilting.
- Durable and machine washable; easy to clean with cold wash and low tumble dry; consider purchasing multiple for continuous protection.
- Includes two split king mattress protectors (39 by 80 inches each), suitable for mattresses with depths of 8 to 16 inches, features fitted sheet design and stretchable skirt for a secure fit.
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- Waterproof polyurethane backing protects against perspiration, bedwetting, liquids, and stains; made from vinyl-free materials safe for children.
- Soft bamboo viscose jersey surface offers moisture-wicking properties and a cooler feel compared to traditional mattress protectors, ensuring comfortable sleep.
- Designed to fit snugly over adjustable beds, maintaining a secure fit and preserving the original mattress feel without added padding or quilting.
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#3
Best Value
15% Off
- Waterproof and absorbent TPU layer protects against spills and stains, ensuring your mattress remains clean.
- Soft quilted surface made of 100% polyester provides comfort and reduces noise during sleep.
- Designed for a perfect fit on Split King mattresses (2 Twin XL), stretching to accommodate depths up to 14 inches without shifting.
- Durable construction allows for machine washing, maintaining ease of care over time.
- Backed by a life guarantee for quality assurance and customer satisfaction.
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- Waterproof and absorbent TPU layer protects against spills and stains, ensuring your mattress remains clean.
- Soft quilted surface made of 100% polyester provides comfort and reduces noise during sleep.
- Designed for a perfect fit on Split King mattresses (2 Twin XL), stretching to accommodate depths up to 14 inches without shifting.
- Durable construction allows for machine washing, maintaining ease of care over time.
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#4
- Waterproof TPU backing protects against spills, stains, and perspiration, extending mattress life.
- Soft, quiet knitted polyester surface functions as an unobtrusive barrier without altering mattress comfort.
- Deep pocket fitted sheet design with elastic band ensures a secure fit on various mattress sizes.
- Machine washable and easy to maintain; consider purchasing extras for continuous protection during washing.
- Includes two 39x80 inch mattress protectors designed for Split King beds, fitting mattresses up to 14 inches deep.
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- Waterproof TPU backing protects against spills, stains, and perspiration, extending mattress life.
- Soft, quiet knitted polyester surface functions as an unobtrusive barrier without altering mattress comfort.
- Deep pocket fitted sheet design with elastic band ensures a secure fit on various mattress sizes.
- Machine washable and easy to maintain; consider purchasing extras for continuous protection during washing.
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#5
10% Off
- Ultra-soft microfiber top layer for added comfort and absorbency.
- Waterproof TPU layer protects against liquids and spills.
- Breathable design promotes air circulation, enhancing comfort during sleep.
- Fitted sheet style with deep pockets ensures a snug fit for adjustable king beds and mattresses up to 18 inches deep.
- Machine washable for easy care; available in various sizes for convenience.
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- Ultra-soft microfiber top layer for added comfort and absorbency.
- Waterproof TPU layer protects against liquids and spills.
- Breathable design promotes air circulation, enhancing comfort during sleep.
- Fitted sheet style with deep pockets ensures a snug fit for adjustable king beds and mattresses up to 18 inches deep.
- Machine washable for easy care; available in various sizes for convenience.
#6
- Split top design measures 78" x 80" and accommodates mattress depths up to 18 inches, specifically designed for flex head adjustable king beds.
- Features a 100% waterproof TPU layer that protects against spills, stains, and nighttime accidents while remaining soft and comfortable.
- Constructed with durable 100% polyester, offering a breathable surface that reduces noise and movement during sleep.
- Machine washable for easy care and lasting durability, ensuring year-round comfort and protection.
- Backed by SPRINGSPIRIT's quality guarantee, offering a replacement or money-back if unsatisfied.
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- Split top design measures 78" x 80" and accommodates mattress depths up to 18 inches, specifically designed for flex head adjustable king beds.
- Features a 100% waterproof TPU layer that protects against spills, stains, and nighttime accidents while remaining soft and comfortable.
- Constructed with durable 100% polyester, offering a breathable surface that reduces noise and movement during sleep.
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#7
- Guaranteed to Fit and Guaranteed to Stay On
- 100-Percent Waterproof
- Dream Cool is a performance fiber that creates a cooler, more comfortable micro-climate with Polyester for Strength-Polyester is a stronger, more flexible fiber that experiences little to no shrinkage with washing.
- DreamFit Technology features high performance elastic corner straps and 360 self-tailoring binding.
- Protect your Split King mattresses with our 2-Piece Mattress Protector Set. Each set includes two high-quality protectors, designed to fit perfectly and provide superior protection against spills, stains, and allergens. Ensure your mattresses stay fresh, clean, and comfortable.
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- Guaranteed to Fit and Guaranteed to Stay On
- 100-Percent Waterproof
- Dream Cool is a performance fiber that creates a cooler, more comfortable micro-climate with Polyester for Strength-Polyester is a stronger, more flexible fiber that experiences little to no shrinkage with washing.
- DreamFit Technology features high performance elastic corner straps and 360 self-tailoring binding.
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#8
- Waterproof membrane protects the mattress from liquids, enhancing durability.
- Fitted sheet design with elastic skirt ensures a secure fit on the mattress.
- Soft brushed polyester surface provides a comfortable touch and additional padding.
- Each pack contains two pads measuring 39x80 inches, designed for adjustable beds with 16-inch deep pockets.
- Machine washable in cold water and can be tumble dried on low heat for easy maintenance.
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- Waterproof membrane protects the mattress from liquids, enhancing durability.
- Fitted sheet design with elastic skirt ensures a secure fit on the mattress.
- Soft brushed polyester surface provides a comfortable touch and additional padding.
- Each pack contains two pads measuring 39x80 inches, designed for adjustable beds with 16-inch deep pockets.
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#9
12% Off
- Equipped with a TPU layer for waterproof protection, this split king size mattress pad features a quilted top for added support and comfort without harmful chemicals.
- Designed as a fitted mattress cover, this quilted protector fits split king mattresses (39" x 80") with a deep pocket to accommodate mattresses up to 18 inches in depth, ensuring comprehensive coverage.
- The mattress pad is crafted for comfort and noiseless use, featuring a soft microfiber surface that enhances sleeping experience without disruptive sounds.
- Easy to maintain, this mattress pad is machine washable in cold water on a gentle cycle, with a low tumble dry recommended to prolong its lifespan. Not suitable for ironing or bleaching, it's versatile enough for various settings like homes and hospitals.
- Customer satisfaction is a priority; any concerns regarding the mini crib sheets can be addressed directly for resolution.
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- Equipped with a TPU layer for waterproof protection, this split king size mattress pad features a quilted top for added support and comfort without harmful chemicals.
- Designed as a fitted mattress cover, this quilted protector fits split king mattresses (39" x 80") with a deep pocket to accommodate mattresses up to 18 inches in depth, ensuring comprehensive coverage.
Read More
#10
12% Off
- Equipped with a TPU layer for waterproof protection, this split king size mattress pad features a quilted top for added support and comfort without harmful chemicals.
- Designed as a fitted mattress cover, this quilted protector fits split king mattresses (39" x 80") with a deep pocket to accommodate mattresses up to 18 inches in depth, ensuring comprehensive coverage.
- The mattress pad is crafted for comfort and noiseless use, featuring a soft microfiber surface that enhances sleeping experience without disruptive sounds.
- Easy to maintain, this mattress pad is machine washable in cold water on a gentle cycle, with a low tumble dry recommended to prolong its lifespan. Not suitable for ironing or bleaching, it's versatile enough for various settings like homes and hospitals.
- Customer satisfaction is a priority; any concerns regarding the mini crib sheets can be addressed directly for resolution.
Read More
- Equipped with a TPU layer for waterproof protection, this split king size mattress pad features a quilted top for added support and comfort without harmful chemicals.
- Designed as a fitted mattress cover, this quilted protector fits split king mattresses (39" x 80") with a deep pocket to accommodate mattresses up to 18 inches in depth, ensuring comprehensive coverage.
Read More
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How We Estimate & Rank
We make shopping simple by hand-picking the top 10 Split King Mattress Protectors just for you. Our team focuses on what’s available right now, what’s popular with other shoppers, and, most importantly, what’s most relevant to your search. We cover leading brands such as Kingnex, SPRINGSPIRIT, Moonsea, DreamFit, Magik & Kover, and other trusted names in this category. By filtering out the noise, we ensure you only see high-quality options that actually meet your needs. It’s all the best finds, minus the endless scrolling!
1,439
PRODUCTS SCANNED & ANALYZED
Final Recommendations
We’ve selected three standout options to make your choice easier.
BEST OVERALL
Our overall winner is Waterproof Quilted Split King Mattress Protector Pad for Adjustable Bed Noiseless Fitted Mattress Cover Soft Padded Topper with Up to 16 Deep Pocket by Kingnex, earning top marks for its balanced combination of quality, performance, and price.
BEST VALUE
The best value for most shoppers is Split King Mattress Protector Pad Waterproof Quilted by SPRINGSPIRIT, earning consistently positive feedback for its performance and accessible pricing.
BEST DEAL
The best deal available right now for Mattress Protectors is Split King Mattress Protector Pad Waterproof Quilted by SPRINGSPIRIT, now offered at 15% off.