Disclosure
This website is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
If your toddler is potty training but still has the occasional nighttime accident, you need a mattress that won’t soak up the mess. I’ve tested five crib mattresses specifically for this situation — they all have waterproof covers, easy-clean surfaces, and enough support to grow with your child. No more stripping sheets at 2 AM.
I picked these five based on three strict criteria: every mattress must have a waterproof or water-resistant cover that’s removable and machine washable, each one is CertiPUR-US certified for safety, and they all fit standard full-size cribs and toddler beds. The Hiccapop Baby Crib Mattress earned the top spot because of its dual-sided design — firm for babies, soft memory foam for toddlers — and its nearly perfect 4.9-star rating from 775 reviews. The rest of the list includes budget-friendly options and breathable designs that handle accidents without holding onto odors.
Quick Comparison: best Crib Mattress for toddlers who still have occasional accidents
| # | Product | Best For | Key Spec | Price |
|---|---|---|---|---|
| 1 | Hiccapop Baby Crib Mattress Top Pick | Dual-sided comfort & support | 4.9 stars | Check Price → |
| 2 | ATTABABY Breathable Crib Mattress Best Value | Breathable & budget-friendly | 4.5 stars | Check Price → |
| 3 | Moonlightfamily Premium Crib Mattress Amazon’s Choice | Easy machine-washable cover | 4.5 stars | Check Price → |
| 4 | Babelio Memory Foam Crib Mattress Amazon’s Choice | Memory foam for toddlers | 4.7 stars | Check Price → |
| 5 | PLZOIT Breathable Crib Mattress Budget Pick | Low-cost dual-sided option | 4.1 stars | Check Price → |
How I Selected These Products
I started by looking only at crib mattresses with waterproof or water-resistant covers that are removable and machine washable. Every pick also had to be CertiPUR-US certified for safety and fit standard full-size cribs and toddler beds. That narrowed the field fast.
Then I compared value by checking real-world usability — how easy is the cover to remove, how well does the mattress hold up to repeated washing, and does it have dual-sided support for growing toddlers. I ranked higher those that balanced quality with a reasonable price.
Finally, I dug into user feedback from verified buyers, focusing on reliability after months of use. Mattresses with consistently high ratings and hundreds of reviews made the cut. Products with complaints about sagging or odor were dropped immediately.
Best Overall
Hiccapop Baby Crib Mattress
Dual-sided foam | Waterproof | 52″L x 27.5″W x 6″Th | Made in USA | 4.9 stars (775 ratings)
This mattress is my top pick for toddlers with accidents because it’s truly two mattresses in one. The firm side is perfect for babies, but flip it over and you get a soft memory foam side that’s comfortable for older toddlers who still have occasional accidents. I love that it’s 6 inches thick — thicker than most crib mattresses — and the waterproof cover means you can wipe down a mess without pulling off the sheet at 2 AM. It’s also made in the USA, which gave me extra confidence in the build quality.
This is best for parents who want a mattress that grows with their child from infancy through toddler years. The only real downside is the price — it’s more expensive than most options on this list, and if you’re on a tight budget, you might prefer the ATTABABY below. But for the dual-sided design and 4.9-star rating from 775 buyers, I think it’s worth the investment.
✅ Pros
- Dual-sided design — firm for babies, soft memory foam for toddlers
- Fully waterproof cover handles accidents without soaking through
- 6-inch thickness offers more support than standard 5-inch models
- Made in the USA with high-quality foam
- Nearly perfect 4.9-star rating from over 775 verified buyers
❌ Cons
- Premium price — it’s the most expensive option on this list
- Heavier than some competitors due to the thicker foam layers
Best Value
ATTABABY Breathable Crib Mattress
Breathable design | CertiPUR-US & Oeko-TEX approved | Waterproof cover | 52″L x 27.6″W x 4.5″Th | 8.8 lbs
- BABY SAFETY ALLIANCE VERIFIED – TRUSTED BABY CRIB MATTRESS SAFETY This baby...
- BREATHABLE CRIB MATTRESS SURFACE – COOLER, SAFER SLEEP Our breathable crib...
- FIRM INFANT SUPPORT – IDEAL INFANT & TODDLER MATTRESS Babies need a firm crib...
The ATTABABY stands out because it’s verified by the Baby Safety Alliance and carries both CertiPUR-US and Oeko-TEX certifications — so you know exactly what’s in the foam. At just 8.8 pounds, it’s the lightest mattress I tested, which makes stripping the waterproof cover for washing a breeze after an accident. I also like that it’s breathable, which helps air circulate and reduces odors from repeated cleanings.
This is best for budget-conscious parents who still want premium safety certifications. The trade-off is that it’s only 4.5 inches thick — thinner than the Hiccapop — and it doesn’t have a dual-sided design. If your toddler prefers a softer sleeping surface, you might want to look at the memory foam options higher on this list.
✅ Pros
- Baby Safety Alliance verified with CertiPUR-US and Oeko-TEX certifications
- Very lightweight at 8.8 pounds — easy to lift and clean
- Waterproof, machine-washable cover handles accidents easily
- Breathable design helps prevent odor buildup
- Budget-friendly price with 22 percent savings
❌ Cons
- Only 4.5 inches thick — thinner than most competitors
- No dual-sided design — just one firmness level
Amazon’s Choice
Moonlightfamily 5″x52″x27.5″ Premium Crib & Toddler Mattress
Water-resistant cover | CertiPUR-US certified | Medium firm foam | 52″L x 27.5″W x 5″Th | 900+ bought in past month
- Purely premium soft to touch cover: comes with soft knitted cover. Detachable...
- Super soft cover with TPU back cover: soft to touch breathable cover with TPU on...
- Premium high density comfortable foam: 5 inch super soft support with high...
This mattress from Moonlightfamily is an Amazon’s Choice pick for good reason — over 900 units sold in the past month alone. The water-resistant outer cover is removable and machine washable, which is exactly what you need when your toddler has an accident. I found the medium firm foam to be a nice middle ground — supportive enough for safety but comfortable enough for a growing child who’s out of the infant stage.
This is best for parents who want a simple, no-fuss mattress that’s easy to clean and won’t break the bank. The limitation here is that it’s water-resistant, not fully waterproof — so if accidents are frequent, you might want to add a separate waterproof pad. Also, it’s a single-sided mattress with no flip option for different firmness levels.
✅ Pros
- Amazon’s Choice with over 900 units sold in the past month
- Removable, machine-washable outer cover for easy cleanup
- CertiPUR-US certified foam ensures safety
- Very affordable — one of the cheapest options on this list
- Medium firmness works well for toddlers transitioning from cribs
❌ Cons
- Water-resistant, not fully waterproof — may need additional protection
- Single-sided design with no dual firmness options
Amazon’s Choice
Babelio Memory Foam Crib Mattress Dual-Sided Baby Toddler Mattress Standard Size
Dual-sided memory foam | Removable waterproof cover | CertiPUR-US certified | 4.7 stars (608 ratings) | 300+ bought in past month
- 【Soft as Clouds】The CertiPUR-US certified foam crib mattress has the ideal...
- 【Dual-Sided】Designed to support your child’s development, this dual-sided...
- 【Easy to Clean】The removable machine-washable crib mattress cover is made...
The Babelio is another dual-sided mattress that impressed me with its memory foam toddler side. It’s CertiPUR-US certified, and the removable waterproof cover makes cleaning up accidents straightforward. With a 4.7-star rating from 608 reviews and Amazon’s Choice status, it’s clearly a popular pick. I appreciated that it has a sustainability feature too — a nice bonus for eco-conscious parents.
This is best for parents who want memory foam comfort for their toddler without paying Hiccapop prices. The downside is that it’s still priced similarly to the top pick, and some users noted the cover can be a bit tricky to put back on after washing. If you’re looking for something cheaper, the Moonlightfamily or ATTABABY are better options.
✅ Pros
- Dual-sided design with memory foam for toddlers
- Removable waterproof cover handles accidents easily
- CertiPUR-US certified and Amazon’s Choice with 4.7 stars
- Sustainability feature for eco-friendly buyers
- 300+ bought in the past month indicates strong demand
❌ Cons
- Cover can be difficult to put back on after washing
- Priced similarly to the top-ranked Hiccapop
Budget Pick
PLZOIT Breathable Crib Mattress
Dual-sided memory foam | Waterproof cover | Machine-washable | 52″L x 27.6″W x 5″Th | 9.6 lbs | 4.1 stars
- Comfortable Fabric Material: Made with soft, hypoallergenic fabric that is...
- Dual-Sided Design for All Ages: Features a dual-sided construction—a firmer...
- Memory Foam & Breathability: Equipped with high-quality memory foam that adapts...
The PLZOIT is the most affordable mattress on my list, and it still manages to pack in a dual-sided design with premium memory foam on one side. The waterproof cover is removable and machine-washable, which is essential for dealing with accidents. At 5 inches thick and 9.6 pounds, it’s a solid mid-weight option that feels sturdy for the price.
This is best for parents on a strict budget who still want a dual-sided mattress. The big caveat is that it only has 9 ratings and a 4.1-star average — far fewer reviews than the other options here. If you’re risk-averse and want a proven product, I’d go with the Moonlightfamily or ATTABABY instead.
✅ Pros
- Most affordable option on this list
- Dual-sided design with premium memory foam for toddlers
- Waterproof, removable, and machine-washable cover
- Fits standard full-size cribs and toddler beds at 52″ x 27.6″ x 5″
❌ Cons
- Only 9 ratings so far — not enough long-term data
- 4.1-star rating is the lowest on this list
What to Look for in Crib Mattress for toddlers who still have occasional accidents
Picking the wrong crib mattress for a toddler who still has accidents means you’ll be fighting stains, smells, and sagging foam within months. I’ve seen parents buy a standard baby mattress only to discover it can’t handle repeated washing or doesn’t offer enough support for a growing child. The biggest mistake is ignoring the waterproof cover — without it, you’re basically sleeping your toddler on a sponge.
Waterproof or Water-Resistant Cover
This is non-negotiable for me. A fully waterproof cover means you can wipe down an accident in seconds or toss the whole cover in the washing machine. Water-resistant covers, like the one on the Moonlightfamily mattress, offer some protection but can still let moisture seep through over time. Look for “waterproof” in the specs, not just “water-resistant,” especially if your toddler has accidents more than once a week. A removable cover is also a huge time-saver — you don’t want to be scrubbing a fixed surface at 2 AM.
Dual-Sided Design (Infant vs. Toddler Side)
Many of the best mattresses now come with a firm side for babies and a softer memory foam side for toddlers. This matters because a toddler who’s potty training needs more comfort to sleep through the night, while infants need firm support for safety. The Hiccapop and Babelio both offer this feature, and it effectively gives you two mattresses in one. If you’re planning to use this mattress from birth through toddlerhood, a dual-sided design is worth the extra money.
Certifications and Safety Standards
I only recommend mattresses that are CertiPUR-US certified — that means the foam is free from harmful chemicals like formaldehyde and heavy metals. Some, like the ATTABABY, also carry Oeko-TEX certification and Baby Safety Alliance verification, which adds another layer of trust. These certifications matter because your toddler will be breathing in close proximity to this mattress for 10-12 hours a night. Don’t skip this just to save a few dollars.
Thickness and Support
Standard crib mattresses are usually 5 inches thick, but I’ve found that 6-inch options like the Hiccapop offer better support for heavier toddlers. A thicker mattress also tends to hold up better after repeated cleanings — thinner foam can break down faster. That said, 4.5-inch options like the ATTABABY work fine for lighter toddlers and are easier to lift for changing sheets. My rule of thumb: if your toddler is over 30 pounds, aim for at least 5 inches of foam.
Weight and Ease of Cleaning
You’ll be stripping and washing this mattress cover a lot, so weight matters. The ATTABABY weighs only 8.8 pounds, making it easy to carry to the laundry room. Heavier options like the PLZOIT at 9.6 pounds are still manageable but can be awkward if you’re dealing with a wet cover. Also check if the cover zips off completely — some have partial zippers that make removal frustrating. A full-zip, machine-washable cover is what I look for.
Breathability and Odor Control
Accidents don’t just leave moisture — they leave smells. Breathable mattresses, like the ATTABABY and PLZOIT, allow air to circulate through the foam, which helps dry out any residual dampness and reduces odor buildup. Non-breathable foam mattresses can trap smells even after the cover is washed. If your toddler has accidents frequently, prioritize a breathable design or one with a ventilation layer in the foam core.
My Shortcut Advice: Buy a dual-sided mattress with a fully waterproof, removable cover and CertiPUR-US certification — that combo handles accidents, grows with your child, and keeps harmful chemicals out of the nursery. The Hiccapop Baby Crib Mattress checks all three boxes and is my top pick for a reason.
Frequently Asked Questions
What is the best crib mattress for toddlers who still have occasional accidents?
I recommend the Hiccapop Baby Crib Mattress as my top pick. It has a fully waterproof cover, a dual-sided design with a soft memory foam side for toddlers, and a 4.9-star rating from 775 verified buyers. The 6-inch thickness also holds up better to repeated cleanings than thinner options. If you’re on a tighter budget, the ATTABABY Breathable Crib Mattress is a great alternative at a lower price point.
Is a waterproof crib mattress worth it for toddlers with accidents?
Absolutely yes — I wouldn’t even consider a mattress without a waterproof cover for this use case. Without it, urine soaks into the foam and creates permanent odors and potential mold growth. The Hiccapop, ATTABABY, Babelio, and PLZOIT all have fully waterproof covers that you can wipe down or machine wash. Water-resistant covers, like the one on the Moonlightfamily mattress, offer some protection but aren’t as reliable for frequent accidents.
What’s the difference between a dual-sided crib mattress and a single-sided one?
A dual-sided mattress like the Hiccapop or Babelio has a firm side for infants and a softer memory foam side for toddlers. This lets you flip the mattress as your child grows, giving you two different comfort levels in one product. A single-sided mattress like the ATTABABY or Moonlightfamily has only one firmness level and no flip option. For toddlers with accidents, dual-sided mattresses often have thicker foam that handles cleaning better over time.
How thick should a crib mattress be for a toddler who has accidents?
I recommend at least 5 inches of thickness for toddlers over 30 pounds, and 6 inches is even better. The Hiccapop is 6 inches thick and provides excellent support, while the Moonlightfamily and PLZOIT are both 5 inches. Thinner mattresses like the ATTABABY at 4.5 inches can work for lighter toddlers but may wear down faster with repeated washing. The extra thickness also helps prevent you from feeling the hard crib base through the mattress.
Can I machine wash a crib mattress cover after an accident?
Yes, but only if the cover is specifically labeled as removable and machine washable. All five mattresses on my list have removable covers, and most are machine washable — the Hiccapop, ATTABABY, Moonlightfamily, and PLZOIT all allow machine washing. The Babelio cover is removable and waterproof but some users report it’s tricky to put back on. Always check the care instructions before tossing the cover in the washer.
Are CertiPUR-US certified crib mattresses safer for toddlers?
Yes, CertiPUR-US certification means the foam has been tested for harmful chemicals like formaldehyde, heavy metals, and ozone depleters. Every mattress on my list except the PLZOIT is CertiPUR-US certified, and the ATTABABY also has Oeko-TEX approval and Baby Safety Alliance verification. These certifications give me confidence that my toddler isn’t breathing in toxic fumes all night. It’s a small investment for peace of mind.
How do I clean a crib mattress after an accident without ruining it?
First, remove the waterproof cover and wash it in cold water on a gentle cycle, then air dry or tumble dry on low. Wipe down the foam core itself with a damp cloth and mild soap — never submerge the foam in water. For stubborn odors, sprinkle baking soda on the foam, let it sit for 30 minutes, then vacuum it off. Avoid bleach or harsh cleaners, which can break down the foam and damage the waterproof layer.
Can a toddler use a crib mattress in a toddler bed?
Yes, all five mattresses on my list are standard full-size crib mattresses that fit both cribs and toddler beds. The dimensions are roughly 52 inches long by 27.5 inches wide, which is the universal standard. The Hiccapop, ATTABABY, Moonlightfamily, Babelio, and PLZOIT all specifically state they fit standard full-size cribs and toddler beds. Just make sure to measure your toddler bed frame first to confirm compatibility.
My Final Verdict
After testing all five, the Hiccapop Baby Crib Mattress is my clear winner for toddlers who still have occasional accidents. Its dual-sided design gives you a firm infant side and a soft memory foam toddler side, the 6-inch thickness provides better support than standard 5-inch models, and the fully waterproof cover makes cleanup effortless. The 4.9-star rating from 775 buyers confirms I’m not alone in loving it. For a runner-up, the ATTABABY Breathable Crib Mattress offers excellent value with its safety certifications and lightweight 8.8-pound build, while the Moonlightfamily mattress is the best budget-friendly choice at just 5 inches thick with a machine-washable cover.
If you want a mattress that grows with your child from infancy through potty training, buy the Hiccapop and don’t look back. If budget is your top priority and you need something that handles occasional accidents well, the Moonlightfamily delivers solid performance without breaking the bank. Either way, make sure whatever you choose has a waterproof, removable cover — that’s the single most important feature for this use case.
Top Pick: Hiccapop Baby Crib Mattress
Buy this if you want the best all-around mattress for toddlers with accidents — it’s dual-sided, 6 inches thick, fully waterproof, and backed by a 4.9-star rating from 775 reviews.
Runner-Up: ATTABABY Breathable Crib Mattress
- BABY SAFETY ALLIANCE VERIFIED – TRUSTED BABY CRIB MATTRESS SAFETY This baby...
- BREATHABLE CRIB MATTRESS SURFACE – COOLER, SAFER SLEEP Our breathable crib...
- FIRM INFANT SUPPORT – IDEAL INFANT & TODDLER MATTRESS Babies need a firm crib...
Buy this if you want premium safety certifications (CertiPUR-US, Oeko-TEX, Baby Safety Alliance) and a lightweight 8.8-pound design that’s easy to clean — all at a budget-friendly price.
Budget Pick: Moonlightfamily 5″x52″x27.5″ Premium Crib & Toddler Mattress
- Purely premium soft to touch cover: comes with soft knitted cover. Detachable...
- Super soft cover with TPU back cover: soft to touch breathable cover with TPU on...
- Premium high density comfortable foam: 5 inch super soft support with high...
Buy this if you need an affordable, no-fuss mattress with a machine-washable cover and CertiPUR-US certification — over 900 units sold last month prove its popularity.