9 Best Waterproof Bassinet Mattress Protectors (November 2026)

The best waterproof bassinet mattress protectors include the Utopia Bedding 100% Waterproof Crib Size Mattress for standard crib mattresses, the Biloban Mini Crib Mattress Protector Sheets Waterproof for a mini crib two-pack, and the SafeRest Waterproof Crib Size Mattress Protector for a washable crib cover.

On this page (8 sections)

1. Which waterproof bassinet mattress protectors made the cut?
2. How do you compare fit, moisture resistance and wash care?
3. Which protectors fit standard crib mattresses?
4. Which covers suit playards and mini cribs?
5. Which covers match bassinet mattresses?
6. How should you measure a bassinet mattress protector?
7. What should you check before washing a waterproof cover?
8. Which waterproof bassinet mattress protector should you choose?

The best waterproof bassinet mattress protector depends on the pad's exact dimensions. For a 17 x 33 in bassinet mattress, the Biloban bassinet protector is the closest fit among these picks; the KeaBabies option is sized for a 32 x 21 in pad.

Bassinet sizes vary, and several products called protectors here are made for cribs, mini cribs or playards. Measure your pad before you choose, then compare the protector's length, width and depth.

For more options across bassinet sizes, see our best baby bassinet mattress protectors. If you're choosing the mattress too, start with our guide to the best baby bassinet mattress.

Which waterproof bassinet mattress protectors made the cut?

The picks are ranked by how well their stated fit, moisture barrier and wash care match common bassinet-protector needs. We compared those details, giving priority to bassinet sizes while including useful crib and playard options for readers with larger pads.

Our score weighs specs, features and buyer feedback against what you're shopping for. Product size matters most: a waterproof cover that doesn't fit your mattress securely isn't a useful match.

Our picks at a glance

1. 1
   Best for standard crib mattresses

   Utopia Bedding 100% Waterproof Crib Size Mattress

   9.7/10 our score

   See it on Amazon
2. 2
   Best for a mini crib two-pack

   Biloban Mini Crib Mattress Protector Sheets Waterproof

   9.6/10 our score

   See it on Amazon
3. 3
   Best for a washable crib cover

   SafeRest Waterproof Crib Size Mattress Protector

   9.5/10 our score

   See it on Amazon

4. 4

   Margaux & May Waterproof Crib Mattress Protector

   Best for a quilted crib surface
   Check it
5. 5

   PlushDeluxe Pack and Play Mattress Protector

   Best for a 39 x 27 in playard
   Check it
6. 6

   Biloban Waterproof Bassinet Mattress Protector

   Best for a 17 x 33 in bassinet
   Check it
7. 7

   BEDLORE Waterproof Crib Mattress Protector 2 Pack

   Best for two standard crib covers
   Check it
8. 8

   KeaBabies 2pk Waterproof Bassinet Mattress Protector 32x21

   Best for a 32 x 21 in bassinet
   Check it
9. 9

   Biloban Zippered Mini Crib Mattress Protector Waterproof

   Best for six-sided mini crib coverage
   Check it

How do you compare fit, moisture resistance and wash care?

Start with fit, because a cover that is too large can bunch while one that is too small may not stay on. Check the protector's dimensions and the mattress depth, then confirm that its elastic edge, skirt or zipper suits the mattress shape.

For moisture resistance, look for a clearly described waterproof layer or backing. Washability also matters when spills mean frequent changes; check whether the maker specifies water temperature, drying method and any care limits.

If your mattress is a Maxi-Cosi Iora, check the dedicated Maxi-Cosi Iora mattress protector fit guide before choosing a general-size cover.

Which protectors fit standard crib mattresses?

Crib-size protectors are useful when your sleep surface is a standard crib mattress, but their dimensions can be much larger than a bassinet pad. Compare the mattress measurement and depth before choosing a crib-size option.

1

Utopia Bedding 100% Waterproof Crib Size Mattress: Best for standard crib mattresses

9.7/10Our score

• 28 x 52 x 5 in fit
• Waterproof terry top with TPU backing
• All-around elastic
• Machine wash cold, tumble dry low

A fitted crib-size cover for a standard 28 x 52 in mattress. Deep pockets and all-around elastic help it stay in place.

See it on Amazon

Pros

• Dimensions include a 5 in mattress depth
• Waterproof top and TPU backing
• Clear care instructions

Cons

• Crib size, not a standard bassinet size
• Do not use fabric softener

Utopia Bedding's protector is sized for a 28 x 52 in crib mattress up to 5 in deep. The fitted style uses all-around elastic, and the waterproof terry top has TPU backing to resist liquids reaching the mattress.

The care instructions are specific: machine wash cold on a gentle cycle and tumble dry low. Don't iron, bleach or use fabric softener, which makes this a practical choice when you can follow those wash limits.

This is the highest-scoring pick for standard crib dimensions, not a universal bassinet cover. Measure your sleep surface carefully before selecting it.

2

Biloban Mini Crib Mattress Protector Sheets Waterproof: Best for a mini crib two-pack

9.6/10Our score

• 38 x 24 in
• Two protectors
• Four-layer design
• Machine washable and dryable

Two mini crib covers let you put one back on while the other is being washed. Check that 38 x 24 in matches your mattress.

See it on Amazon

Pros

• Two covers in the pack
• Made for mini crib dimensions
• Machine washable and dryable

Cons

• Mini crib size may not fit a bassinet
• Mattress depth is not specified

Biloban's mini crib two-pack gives you a second cover for the wash cycle. Each protector measures 38 x 24 in, so match those dimensions against your mini crib mattress rather than assuming it will fit a bassinet.

The four-layer construction has a soft microfiber surface, and the covers are described as machine washable and dryable. The maker says the pack is vacuum-sealed and roll-packed for transport.

Choose these if your mattress is a compatible mini crib size and you want a spare ready. The available fit details don't specify mattress depth, so confirm that dimension if your pad is unusually thick.

3

SafeRest Waterproof Crib Size Mattress Protector: Best for a washable crib cover

9.5/10Our score

• Crib size
• Quiet and breathable
• Machine wash cold, tumble dry low

A crib-size fitted protector with a terry surface and machine-wash care. Its size is intended for crib mattresses rather than bassinet pads.

See it on Amazon

Pros

• Machine washable
• Quiet and breathable design
• Crib-size option

Cons

• Exact mattress dimensions are not specified
• Not sized for a standard bassinet

SafeRest makes this protector for crib-size mattresses and describes it as quiet and breathable. The surface uses cotton and polyester terry cloth, with a polyurethane laminate lining and polyester skirt.

Care is straightforward: machine wash and tumble dry on low. SafeRest advises against bleach, dry cleaning, ironing and high heat, which can damage the waterproof lining.

The exact mattress dimensions are not specified here, so check that the crib-size fit works for your mattress before choosing it. It is not a likely match for a smaller bassinet pad.

4

Margaux & May Waterproof Crib Mattress Protector: Best for a quilted crib surface

9.4/10Our score

• Standard 28 x 52 in crib fit
• Quilted viscose top
• Double TPU layer
• Machine wash and low-heat dry

Its quilted top and fitted skirt are designed for a standard crib mattress. Choose it only when those dimensions match your mattress.

See it on Amazon

Pros

• Standard crib dimensions are specified
• Double TPU layer
• Machine washable and dryer-safe

Cons

• Not a bassinet-size cover
• Depth fit is not stated in the available details

Margaux & May's quilted protector is designed for a standard 28 x 52 in crib mattress. The maker describes a viscose top, double TPU layer and high-stretch fitted skirt for a snug fit on that standard size.

It's machine washable and dryer-safe, with cool machine washing and low-heat drying specified. Those directions help if you expect frequent laundering and want a clear care routine.

The cover is a crib option rather than a bassinet-size pick. Compare your mattress depth as well as its length and width before ordering.

Which covers suit playards and mini cribs?

Playard and mini crib pads use their own dimensions, so don't assume that a cover labeled for one will fit another. Check the stated length, width and depth against your mattress before relying on a fitted skirt.

5

PlushDeluxe Pack and Play Mattress Protector: Best for a 39 x 27 in playard

9.3/10Our score

• 39 x 27 in fit
• Fitted skirt up to 8 in
• Quilted bamboo viscose surface
• Machine washable

A fitted cover for compatible Pack and Play, playard and mini crib mattresses measuring 39 x 27 in. Its larger dimensions differ from many bassinet pads.

See it on Amazon

Pros

• Fit dimensions and skirt depth are stated
• Quilted bamboo viscose surface
• Made for playard and mini crib use

Cons

• Not sized for a standard bassinet pad
• Care details don't specify dryer temperature

PlushDeluxe is sized 39 x 27 in for compatible Pack and Play, playard and mini crib mattresses. Its fitted skirt is made for mattresses up to 8 in deep, which gives you both length and depth to check.

The top is quilted bamboo viscose, and the maker describes the protector as waterproof and breathable. It is machine washable, though the care information here doesn't specify a dryer setting.

This is a practical choice for a playard or mini crib with matching dimensions. It won't fit most standard bassinet pads.

9

Biloban Zippered Mini Crib Mattress Protector Waterproof: Best for six-sided mini crib coverage

8.2/10Our score

• 24 x 38 x 3.5 in
• Zippered encasement
• Waterproof top and four sides
• Machine washable

A zippered mini crib cover with waterproof fabric across the top and four sides. Its 24 x 38 x 3.5 in dimensions need to match the mattress.

See it on Amazon

Pros

• Zippered enclosure
• Waterproof top and four sides
• Machine washable

Cons

• Bottom fabric is not waterproof
• Mini crib dimensions may not fit a bassinet

Biloban's zippered cover measures 24 x 38 x 3.5 in and is made for a mini crib mattress. Its top and four sides are waterproof, while the bottom fabric is breathable and not waterproof.

The zipper surrounds the mattress, which differs from a fitted cover that stretches over the corners. The protector is machine washable and can be dried in a dryer or by air.

Choose it if you want a zippered mini crib encasement and your mattress matches the stated dimensions. The full enclosure may take more effort to remove and replace than a fitted sheet-style protector.

Which covers match bassinet mattresses?

The two bassinet-specific picks here have different shapes and measurements, so neither should be treated as universal. Check your bassinet pad's dimensions and thickness before choosing between them.

6

Biloban Waterproof Bassinet Mattress Protector: Best for a 17 x 33 in bassinet

9.1/10Our score

• About 17 x 33 in
• Elastic skirt
• Viscose surface
• Washable

This bassinet-size pick has an elastic skirt for fitting and removal. Compare the stated 17 x 33 in dimensions with your pad before buying.

See it on Amazon

Pros

• Designed for bassinet mattresses
• Elastic skirt instead of envelope casing
• Washable

Cons

• Dimensions may not match every bassinet
• Drying instructions are not specified

Biloban's bassinet protector measures about 17 x 33 in and has an elastic skirt around the edge. Its viscose surface and waterproof backing are described as breathable, and the cover is washable.

The elastic edge is intended to make fitting and removal easier than an envelope-style casing. Still, a close measurement match matters: compare the pad's full length and width before you put it on.

For a bassinet mattress near 17 x 33 in, this is the strongest fit among the listed bassinet options. If you're still deciding on the pad itself, our fitted bassinet mattress pad guide covers another layer choice.

8

KeaBabies 2pk Waterproof Bassinet Mattress Protector 32x21: Best for a 32 x 21 in bassinet

8.6/10Our score

• 32 x 21 in
• Two protectors
• Fits up to 3 in deep
• Machine washable and dryable

A two-pack sized for a 32 x 21 in bassinet pad up to 3 in deep. The maker identifies compatibility with the rectangular Baby Delight Beside Me Dreamer pad.

See it on Amazon

Pros

• Dimensions and depth are stated
• Two covers in the pack
• Machine washable and dryable

Cons

• Fit is limited to matching dimensions
• Not a universal bassinet size

KeaBabies' two-pack is sized 32 x 21 in and fits pads up to 3 in deep. The maker identifies compatibility with the rectangular Baby Delight Beside Me Dreamer mattress pad, so this is a specific size match rather than a general bassinet pick.

The protector has a quilted cotton top, waterproof bottom and stretch fabric intended to make it easier to put on and remove. It is machine washable and dryable, and the two-pack leaves a spare available during laundry.

Choose it when your pad matches those dimensions and depth. A different bassinet shape or size may need another protector.

How should you measure a bassinet mattress protector?

Measure the bare mattress from edge to edge for length and width, then check its depth at the thickest point. If you need a HALO replacement, see the HALO bassinet mattress guide.

Compare those measurements with the protector's stated fit, allowing for the fact that some makers give approximate dimensions.

Next, look at the attachment style. Elastic skirts and fitted corners stretch over the edges, while a zippered encasement wraps around the mattress; whichever style you choose should fit without loose fabric.

The mattress itself matters too. Our best baby bassinet mattress guide can help you compare pads and replacement options before you settle on a cover.

What should you check before washing a waterproof cover?

Follow the care directions for that specific protector, especially water temperature and dryer heat. Utopia Bedding specifies cold water on a gentle cycle and low tumble drying, while SafeRest also cautions against high heat and bleach.

Some covers are described as machine washable and dryable without a temperature or heat setting. When directions are limited, check with the maker rather than guessing, and make sure the cover is fully dry before putting it back on.

Which waterproof bassinet mattress protector should you choose?

Choose the Biloban 17 x 33 in protector for a bassinet pad close to those measurements, or the KeaBabies two-pack for a compatible 32 x 21 in pad up to 3 in deep. For crib, mini crib or playard mattresses, pick a cover only after matching its stated dimensions and depth.

A snug fit, a clear waterproof layer and care instructions you can follow are the practical checks that matter most. If you want to compare more bassinet protector styles, continue to our best baby bassinet mattress protector roundup.

Our top 3 picks at a glance

1. 1
   Best for standard crib mattresses

   Utopia Bedding 100% Waterproof Crib Size Mattress

   9.7/10 our score

   See it on Amazon
2. 2
   Best for a mini crib two-pack

   Biloban Mini Crib Mattress Protector Sheets Waterproof

   9.6/10 our score

   See it on Amazon
3. 3
   Best for a washable crib cover

   SafeRest Waterproof Crib Size Mattress Protector

   9.5/10 our score

   See it on Amazon

Frequently asked questions

How do I choose a waterproof bassinet mattress protector?

Measure the mattress length, width and depth, then compare all three with the protector's fit dimensions. Choose a fitted cover with an elastic edge or skirt that stays smooth, and check the care instructions so you know how to wash and dry it.

A crib or mini crib cover can be too large for a bassinet.

Can I use a crib mattress protector on a bassinet?

Only if its dimensions fit the bassinet mattress securely, with no loose fabric. Crib covers are often much larger than bassinet pads, so compare the actual measurements rather than relying on a general size label.

Use the bassinet and mattress maker's instructions for safe bedding setup.

Are waterproof bassinet mattress protectors washable?

Many covers in this roundup are machine washable, but care directions vary. Some specify cold or cool water and low-heat drying, while others only state that the cover is washable.

Follow the care instructions for your specific protector, since heat or fabric softener can be restricted.

Should a mattress protector go under the bassinet sheet?

Follow the bassinet and mattress instructions for approved bedding layers. If a protector is allowed, it should fit tightly and lie flat, with no bunching or loose edges.

A fitted protector does not replace a properly fitted sheet or the manufacturer's safe-sleep guidance.