9 Best Waterproof Crib Mattress Covers (November 2026)
The best waterproof crib mattress covers include the Crib Size SureGuard Mattress Encasement for full mattress coverage, the Sealy Baby SafetyCase Breathable Waterproof Crib Mattress for a zippered everyday layer, and the GRT 2 Pack Waterproof Crib Mattress Protector for spare-cover convenience.
On this page (5 sections)
The best waterproof crib mattress cover for full coverage is the Crib Size SureGuard Mattress Encasement, which zips around all six sides of a standard crib mattress. For faster sheet changes, choose a fitted two-pack such as GRT or KeaBabies so a clean cover is ready while the other is in the wash.
The right choice depends on your mattress dimensions and how you handle nighttime leaks. A fitted waterproof cover is quick to remove, while a zippered encasement wraps around the mattress.
For the layer that touches your baby, start with our baby crib sheets guide. If airflow is a priority in your comparison, see our best breathable crib mattress cover.
Our picks at a glance
-
1
Best for full mattress coverageCrib Size SureGuard Mattress Encasement
9.7/10 our score
See it on Amazon -
2
Best for a zippered everyday layerSealy Baby SafetyCase Breathable Waterproof Crib Mattress
9.6/10 our score
See it on Amazon -
3
Best for spare-cover convenienceGRT 2 Pack Waterproof Crib Mattress Protector
9.5/10 our score
See it on Amazon
- 4
Check itKeaBabies 2pk Waterproof Crib Mattress Protector Cover
Best for a lightweight two-pack - 5
Check itBaby and Brooke Organic Bamboo from Viscose Fitted
Best for a bamboo-viscose option - 6
Check itPlushDeluxe Crib Mattress Protector
Best for a 49-inch mattress - 7
Check itSafeRest Zippered Mattress Protector
Best for six-sided protection - 8
Check itYoofoss Waterproof Bassinet Mattress Pad Cover
Best for a rectangular bassinet - 9
Check itAmerican Baby Company 2 Pack Waterproof Fitted
Best for a quilted two-pack
The best waterproof crib mattress covers for different needs
The SureGuard encasement is the strongest fit when you want six-sided coverage, while the fitted options focus on easy changes and spare covers. Match the style and dimensions to your mattress before comparing materials or pack size.
Crib Size SureGuard Mattress Encasement: Best for full mattress coverage
- Six-sided waterproof protection
- Cotton terry top
- Fits crib mattresses 28 x 52 in and 6–8 in deep
- Machine washable and dryable
A zippered cover surrounds all six sides of a standard crib mattress. The cotton terry top and machine-washable design suit families who want enclosed coverage.
Pros
- Covers all six sides
- Cotton terry top
- Machine wash and dry
Cons
- Needs a separate fitted protector for frequent accidents and easier cleanup
- Confirm mattress depth before buying
SureGuard is the top choice if you want the mattress enclosed on all sides. Its zipper closes around a standard 28 x 52-inch crib mattress that is 6 to 8 inches deep, and the cotton terry top is designed to wick moisture.
The brand describes the cover as waterproof and says it blocks perspiration, bed wetting, liquids and stains. The encasement is machine washable and dryable, which helps when the whole cover needs cleaning.
For repeated accidents, SureGuard recommends putting a fitted protector over the encasement for easier cleanup. That adds a layer to remove and wash without taking the zippered cover off the mattress.
Choose it when full coverage matters and your mattress fits the stated dimensions. If your mattress is shallower, deeper or a different size, measure first and compare a fitted option with a matching fit.
Sealy Baby SafetyCase Breathable Waterproof Crib Mattress: Best for a zippered everyday layer
- Full zippered encasement
- Waterproof barrier
- Machine washable and dryer friendly
- Fits standard 52 x 28 in crib mattresses
The full zip closure surrounds a standard-size crib mattress, and the cover is designed for frequent washing. Its micro-weave fabric is described as soft and breathable.
Pros
- Fully encases the mattress
- Waterproof
- Washer and dryer friendly
Cons
- Pack contains 1 cover
- Check fit with your mattress shape and depth
Sealy Baby SafetyCase is a practical pick for a standard crib mattress when you prefer a full zippered cover. It surrounds the mattress and is described as waterproof, helping block leaks, spit-up and spills before they reach the mattress.
Its micro-weave fabric is described as soft and breathable, with light quilting rather than excess padding. Sealy says the cover is machine washable and dryer friendly, making it suited to regular wash cycles.
The cover comes as a single encasement, so a second one may be useful if you want a clean replacement ready during laundry. For sheet rotation, see how many crib sheets you need.
Check mattress depth and shape before buying, especially if yours is unusually thick or has rounded corners.
Choose Sealy for an everyday encasement with a zip closure and standard 52 x 28-inch sizing. For a fitted cover that takes less effort to remove, consider one of the two-packs below.
GRT 2 Pack Waterproof Crib Mattress Protector: Best for spare-cover convenience
- Two fitted covers
- Fits 52 x 28 in mattresses from 4–9 in deep
- Four-layer design with TPU backing
- Machine washable
Two fitted protectors make it easier to have a clean replacement ready after a leak. The stretch skirt is designed for standard crib mattresses from 4 to 9 inches deep.
Pros
- Two covers in the pack
- Wide stated depth range
- Machine washable
Cons
- No zipper
- Care instructions call for low-temperature tumble drying
GRT is the best fit here if you want a spare cover ready for nighttime changes. The two fitted protectors fit 52 x 28-inch mattresses from 4 to 9 inches deep, giving them a broader stated depth range than several other fitted picks.
Its four-layer construction includes a terry top, absorbent membrane, base layer and waterproof TPU backing. The fitted stretch skirt is intended to reduce shifting, and the covers are machine washable.
GRT specifies tumble drying on low and says not to exceed 104°F. Following the care directions matters if you want the waterproof layer and elastic skirt to keep their shape over repeated washes.
Choose this pack if your mattress falls within the stated size range and you value having a spare. It is not zippered, so the mattress sides are not enclosed.
KeaBabies 2pk Waterproof Crib Mattress Protector Cover: Best for a lightweight two-pack
- Two fitted covers
- 52 x 28 x 8 in fit
- Elastic hem
- Machine washable and dryable
This two-pack gives you a spare fitted cover for quick changes. Its elastic hem is designed to fit a standard 52 x 28 x 8-inch mattress.
Pros
- Two covers in the pack
- Machine washable and dryable
- Lightweight for travel
Cons
- Check that your mattress depth matches the stated 8 in
- No zipper
KeaBabies suits families who want two fitted covers that are light to handle. Each cover is sized for a standard 52 x 28 x 8-inch mattress and has an elastic hem for a snug fit.
The top layer is described as quilted cotton, with a waterproof bottom layer. KeaBabies says the covers are machine washable and dryable, and they can also be packed for travel or daycare.
The stated depth is 8 inches, so check that measurement rather than assuming the cover will stretch to fit any standard mattress. The two-pack gives you a replacement while one cover is being washed.
Pick KeaBabies when the stated dimensions match your mattress and you want a lightweight two-pack. If you need coverage around the mattress sides, compare a zippered encasement instead.
Baby and Brooke Organic Bamboo from Viscose Fitted: Best for a bamboo-viscose option
- Fitted protector
- 52 x 28 x 8 in
- Waterproof and absorbent
- Breathable
This fitted cover is described as a waterproof, absorbent and breathable bamboo-viscose option. Match its stated dimensions to your crib mattress before choosing it.
Pros
- Fitted style
- Stated as waterproof and absorbent
- Sized for a standard crib mattress
Cons
- Check current care instructions before washing
- Confirm the exact fit for your mattress
Baby and Brooke is an option if you want a fitted waterproof protector described as bamboo from viscose. It is sized at 52 x 28 x 8 inches and described as absorbent and breathable.
The product information also identifies the fabric as 100% cotton, so confirm the material details before buying if fiber content is a deciding factor. Care instructions are not available here, so check them before washing.
Its standard crib dimensions make it a possible fit for a mattress with a matching length, width and depth. As with any fitted protector, make sure the skirt sits securely before adding a fitted sheet.
Choose it if the dimensions fit and you want this particular fitted style. Buyers prioritizing a confirmed two-pack or detailed care guidance may prefer another pick.
PlushDeluxe Crib Mattress Protector: Best for a 49-inch mattress
- Fitted sheet style
- Fits 28 x 49 in mattresses up to 7.5 in deep
- Bamboo-viscose fabric
- Machine washable
The 28 x 49-inch size is a match for mattresses shorter than standard crib dimensions. Its fitted skirt is stated to fit mattresses up to 7.5 inches deep.
Pros
- Specific fit for 28 x 49 in mattresses
- Breathable waterproof membrane
- Machine washable
Cons
- Does not fit the standard 28 x 52 in length
- Verify your mattress measurements
PlushDeluxe is the size-specific choice for a 28 x 49-inch mattress, which is shorter than the standard crib size. Its fitted skirt is stated to fit mattresses up to 7.5 inches deep.
The top is described as quilted terry cotton, with a breathable waterproof membrane beneath it. PlushDeluxe also describes the cover as soft and noiseless, and it is machine washable.
Do not choose this one by the word “crib” alone if your mattress measures 52 inches long. Measure the mattress and compare all three dimensions, since a short cover can pull tight or fail to fit.
This protector makes sense only when the shorter length matches your mattress. For a standard 28 x 52-inch crib mattress, select a cover designed for that size.
SafeRest Zippered Mattress Protector: Best for six-sided protection
- Zippered encasement
- Waterproof barrier
- Cotton fabric
- Machine washable
A zippered design covers the mattress on all six sides, unlike a fitted protector that leaves the sides exposed. Confirm the crib-size dimensions and depth before buying.
Pros
- Six-sided coverage
- Cotton fabric
- Machine washable
Cons
- Exact crib dimensions are not specified here
- Check size and depth before purchase
SafeRest is another zippered option for shoppers who want six-sided coverage. Its cotton fabric and waterproof barrier are designed to protect against spills and accidents, and the cover is machine washable.
The key buying check is fit: the crib dimensions are not specified here, while the stated fit goes up to 15 inches thick. Measure your mattress and verify the exact crib-size version before choosing it.
SafeRest describes the cover as breathable and noiseless. Those features may suit a room where rustling sounds are a concern, though mattress fit should come first.
Choose it when you confirm the exact size and want a full encasement. If you prefer a clearly stated 52 x 28-inch fit, Sealy or the fitted standard-size picks give more specific dimensions.
Yoofoss Waterproof Bassinet Mattress Pad Cover: Best for a rectangular bassinet
- Two fitted covers
- 34 x 19 in size
- Fits mattresses up to 4 in thick
- Quilted fabric
This two-pack is sized for a rectangular bassinet mattress, not a standard crib mattress. Check both the length and width before choosing it.
Pros
- Two covers in the pack
- Made for rectangular bassinet mattresses
- Washable
Cons
- Not sized for a standard crib mattress
- Limited to mattresses up to 4 in thick
Yoofoss is for a rectangular bassinet mattress, not a standard crib mattress. The two fitted covers measure 34 x 19 inches and are designed for mattresses up to 4 inches thick.
The quilted fabric is described as soft and breathable, and the covers are washable. A two-pack can help keep a clean cover on hand for a smaller sleep space.
Measure the bassinet mattress before ordering because bassinet shapes and sizes vary. This cover is not a substitute for a 52 x 28-inch crib protector.
Choose Yoofoss only if those bassinet dimensions match your mattress. For a compact crib, compare options made for that smaller crib size, such as our best mini crib mattress cover.
American Baby Company 2 Pack Waterproof Fitted: Best for a quilted two-pack
- Two fitted covers
- Fits 52 x 28 in mattresses up to 6 in thick
- Quilted design
- Machine washable and dryer safe
Two quilted fitted protectors provide a spare for wash days and nighttime changes. The stated fit is for standard 52 x 28-inch mattresses up to 6 inches thick.
Pros
- Two covers in the pack
- Quilted surface
- Machine washable and dryer safe
Cons
- Confirm your mattress depth is 6 in or less
- Fitted style leaves mattress sides uncovered
American Baby Company offers two quilted fitted protectors for standard crib and toddler mattresses. The stated fit is 52 x 28 inches and up to 6 inches deep, with reinforced deep corners and elastic around the edge.
The covers are described as soft and noiseless, and they are machine washable and dryer safe. A spare can shorten the time a mattress sits uncovered after a nighttime leak.
This fitted style covers the top and sides, but it does not zip around the underside. Check the mattress depth before buying, particularly if your mattress is thicker than 6 inches.
Choose this pack for a standard mattress that fits the stated depth and for a quilted surface. If you want mattress-side enclosure, compare the zippered SureGuard or Sealy options.
What should you check before buying a waterproof crib mattress cover?
Start with the mattress length, width and depth, then choose between a fitted cover and a zippered encasement. Those two checks prevent the most common fit mismatch and help you decide how much coverage you need.
Standard crib mattresses are often 52 x 28 inches, but don’t assume yours matches. Measure it, including its depth, and compare those dimensions with the cover’s fit range.
If you have a less common size, use our guide to 18 x 36-inch crib mattress protectors or the roundup of standard size crib mattress protectors. Bassinet owners can also compare our best portable crib mattress protector.
Which waterproof crib mattress cover style fits your routine?
A fitted protector is usually easier to remove for a quick wash, while a zippered encasement covers more of the mattress. Decide whether convenience or six-sided coverage is the bigger priority in your home.
Fitted covers sit over the mattress like a sheet and often use elastic around the skirt. Encasements use a zipper and surround the mattress, but may take longer to remove and put back on.
A mattress pad can add a quilted or absorbent layer, while a sheet is the layer that touches the baby. Our baby mattress pad vs crib sheet guide explains how those layers differ, and the best baby crib pads waterproof roundup focuses on pad-style options.
How many waterproof covers make nighttime changes easier?
Two covers give you a clean replacement while the other is in the wash. A two-pack may be useful if leaks happen often or your laundry routine is not immediate.
Keep the spare in a clean, dry place so it is easy to reach during a change. If you choose a single encasement, a fitted protector over it can make frequent cleanup simpler.
For a fabric-focused alternative, see our best flannel waterproof crib pads and best organic crib mattress pad. Families comparing natural-fiber options can also read about the best organic crib mattress protector.
Are waterproof crib mattress covers safe to use?
A cover should fit snugly and lie flat under a fitted crib sheet. Avoid loose layers, and follow your crib and mattress maker’s instructions for the sleep space.
This guide compares cover features and stated fit, but it does not replace safe-sleep guidance. Read our explainer on are crib mattress covers safe and do you need a crib mattress protector before adding a layer.
When your child moves to a toddler bed, the mattress and bedding needs change. Our best toddler bed waterproof mattress protector roundup covers that next size.
How we compared waterproof crib mattress covers
We compared each cover’s style, dimensions, stated materials, waterproof features, pack size and care instructions against the needs of a crib mattress. Our score weighs specs, features and buyer feedback against what you’re shopping for.
We focused on how clearly each option matches a common need, such as six-sided coverage, an easy-to-wash fitted layer or a spare cover for nighttime changes.
We gave extra weight to clear mattress dimensions and useful care details. When a cover’s fit or care information is less specific, check it before ordering.
More guides on this topic
- Best Waterproof Crib Sheets
Which waterproof crib mattress cover should you choose?
Choose SureGuard if you want a zippered cover around all six sides of a standard mattress, or GRT if a two-pack and a wide stated depth range matter more. For a fitted 8-inch-deep mattress, KeaBabies is a straightforward two-cover option.
If you want a breathable-focused comparison, see our best breathable crib mattress covers. For organic materials, compare the best organic crib mattress protectors and confirm the material and care details that matter to you.
Our top 3 picks at a glance
-
1
Best for full mattress coverage
Crib Size SureGuard Mattress Encasement
9.7/10 our score
See it on Amazon -
2
Best for a zippered everyday layer
Sealy Baby SafetyCase Breathable Waterproof Crib Mattress
9.6/10 our score
See it on Amazon -
3
Best for spare-cover convenience
GRT 2 Pack Waterproof Crib Mattress Protector
9.5/10 our score
See it on Amazon
Frequently asked questions
Do crib mattress protectors need to be waterproof?
A waterproof cover helps keep leaks, spit-up and spills from reaching the mattress. Choose a fitted protector for quick changes or a zippered encasement when you want coverage around the sides as well.
Check that the cover fits snugly and follow the crib and mattress instructions.
What is the difference between a fitted protector and an encasement?
A fitted protector stretches over the top and sides like a sheet, while an encasement closes around the mattress with a zipper. Fitted styles are simpler to remove for washing; encasements cover more of the mattress surface.
Either way, use a fitted crib sheet over the protector.
How many waterproof crib mattress covers should I have?
Two covers can make nighttime changes easier because you can put on a clean one while the other is in the wash. Several picks here come in two-packs, while the SureGuard encasement is a single cover.
Choose based on how often leaks happen and how quickly you can wash and dry bedding.
Can a waterproof crib mattress cover go under a crib sheet?
Yes. Put the waterproof protector directly over the mattress, then place a fitted crib sheet over it.
Keep the sleep surface firm and flat, and make sure both layers fit securely without loose fabric.
Follow your crib and mattress maker's instructions for approved bedding.
