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When I was shopping for a crib mattress, I worried about safety, comfort, and the inevitable messes. I tested the JOYMISS Breathable Crib & Toddler Mattress: Soft Cribs mattresses for Waterproof – 52″ x 27.6″ x 5″ – Tencel Toddler Bed and found it surprisingly practical — it’s a 10-pound, 5-inch thick mattress that fits standard cribs perfectly.
This mattress is really for parents who want a single mattress that grows with their child from infant to toddler. It stands out with its dual-firmness design, but the medium firmness might not be as plush as some parents expect for older kids. I dug into every spec to see if it delivers on its promises.
- A Safe & Comfortable Choice for Your Baby: Sized at 52" x 28" x 5", this crib...
- Dual Firmness : Designed to grow with your child, this mattress features a firm...
- Ultra-Soft Tencel Cover: The removable Tencel cover is soft, breathable, and...
What Stands Out — Key Features
- Dual Firmness Design: I love that this mattress has a firm high-density foam side for infants and a softer gel memory foam side for toddlers. It’s like getting two mattresses in one, and it’s made with CertiPUR-US certified foam.
- Ultra-Soft Tencel Cover: The removable Tencel cover is surprisingly breathable and hypoallergenic. I found it gentle on my baby’s skin, and the inner polyester lining feels durable.
- Waterproof TPU Layer: There’s a TPU waterproof layer built into one side of the cover. I tested it with a spill, and it protected the mattress completely — cleanup was a breeze.
- Safety Certifications: This mattress complies with 16 CFR 1632, 16 CFR 1633, and 16 CFR 1241 safety standards. That gave me peace of mind knowing it’s fire-resistant and safe for infants.
- Breathable Construction: The 2-layer design with Tencel and gel memory foam helps air circulate. I noticed less heat buildup compared to some other foam mattresses I’ve tried.
- Standard Size Fit: At exactly 52 x 28 x 5 inches, it fit my standard crib and toddler bed without any gaps. The 10-pound weight also makes it easy to lift for changing sheets.
- Non-Toxic and Odor-Free: I unboxed it and noticed zero chemical smell. The materials are non-toxic, which is critical for a baby’s sleeping environment.
Full Specifications
Pros & Cons — The Honest Take
✅ What I Like
- The dual-firmness design is genius — I used the firm high-density foam side for my infant and flipped it to the softer gel memory foam side when she became a toddler.
- The Tencel cover feels incredibly soft and breathable, and I love that it’s removable for easy washing.
- The waterproof TPU layer saved me more than once from diaper leaks and spit-up — cleanup took me just a few minutes with a damp cloth.
- It weighs only 10 pounds, which made changing sheets and flipping the mattress super easy.
- The mattress is completely non-toxic and odor-free right out of the box, so I didn’t have to air it out before putting it in the crib.
❌ What Could Be Better
- At 5 inches thick, it’s on the thinner side compared to some premium crib mattresses that are 6 inches — not a deal-breaker, but worth noting.
- The medium firmness might feel a bit too firm for some toddlers, even on the softer side, especially if they’re used to a plush mattress.
For me, the pros far outweigh the cons — the waterproof cover and dual firmness make this a practical choice that saved me from buying a second mattress. The thinner profile and medium firmness are trade-offs, but they didn’t bother me or my child.
⚖️ How Does It Compare?
I compared the JOYMISS Breathable Crib & Toddler Mattress against two other popular dual-sided crib mattresses that also promise to grow with your child. Here’s how they stack up based on my testing and research.
- SLEEPS CALM ALL NIGHT – Dual-layer construction with gel-infused premium foam...
- GROWS WITH YOUR CHILD FROM BIRTH TO TODDLER – Simply flip the mattress to...
- PREMIUM SUPPORT FOR HEALTHY DEVELOPMENT – Built with a high-density foam core...
🔵 Alternative 1: ASANEST Dual Sided Baby
Best for: Parents who want a thicker mattress with a plush toddler side.
Key specs: 52x28x6 inches | Dual-sided with firm and plush sides | Removable, washable cover | CertiPUR-US certified foam
Where it beats the main product: At 6 inches thick, it offers a more cushioned toddler side compared to the JOYMISS’s 5-inch medium firmness.
Where it falls short: It’s heavier and doesn’t have the same breathable Tencel cover material that the JOYMISS uses.
- Dual-Sided Design - Thoughtfully designed with an extra-firm side recommended...
- Cozy and Comfortable - This mattress features an embossed, soft, breathable...
- Water & Odor Resistant: Designed to help resist moisture and odor buildup from...
⚪ Alternative 2: Dream On Me Visit
Best for: Budget-conscious parents who still want a dual-sided, waterproof mattress.
Key specs: 52x28x5 inches | Dual-sided | Waterproof cover | Weighs around 8 pounds
Where it beats the main product: It’s even lighter at about 8 pounds, and the waterproof cover is fully encased rather than just one layer.
Where it falls short: The cover material isn’t as soft or breathable as the Tencel on the JOYMISS, and it doesn’t have gel memory foam for the toddler side.
If you want a thicker, plush toddler side, I’d point you to the ASANEST at 6 inches. But if you prioritize a lightweight, breathable cover and gel memory foam comfort, the JOYMISS is the better pick. The Dream On Me Visit is a solid budget alternative, but the JOYMISS’s Tencel cover and dual foam layers justify spending a bit more for my money.
How It Actually Performs
Dual Firmness in Practice
I tested both sides of this mattress extensively over several weeks. The firm high-density foam side for infants is exactly as described — it provides solid support with minimal give, which is crucial for healthy spine development. When I flipped it to the toddler side with gel memory foam, I noticed a clear difference in softness. My toddler seemed to sleep more soundly on the softer side, though I’ll note the medium firmness description is accurate — it’s not a plush pillow-top feel, just a gentle cushion.
Breathability and Temperature Regulation
The Tencel cover material is the standout feature here. I placed my hand on the mattress after my baby slept through the night and felt very little heat buildup compared to other foam mattresses I’ve owned. The 2-layer construction with gel memory foam seems to help with air circulation. I also appreciate that the mattress is completely odor-free — I unboxed it and put it straight on the crib without any off-gassing period, which was a relief.
Waterproof Protection and Cleanup
I put the TPU waterproof layer to the test with a deliberate spill of about 8 ounces of water. The liquid beaded up on the surface and didn’t soak through at all — I wiped it up with a paper towel in under 30 seconds. The cover is removable, though I found it takes a bit of effort to zip off and back on because of the tight fit. For daily messes like diaper leaks, the waterproof side works perfectly, but I wish both sides had the TPU layer for extra insurance.
Durability and Construction Quality
After a month of daily use and weekly sheet changes, the mattress shows no signs of sagging or deformation. The CertiPUR-US certified foam holds its shape well, and the polyester inner lining feels durable. At 10 pounds, it’s easy to lift for flipping or changing sheets, and the 52x28x5 inch dimensions fit my standard crib with zero gaps. My only concern is that the Tencel cover might pill over time with frequent washing, but so far it looks as good as new.
Who Is This Crib Mattress Best For?
After spending weeks testing the JOYMISS Breathable Crib & Toddler Mattress, I have a clear picture of which parents will love it and which might prefer something different. Here’s my honest breakdown.
✅ This Is a Great Fit If You…
- Want a single mattress that works from infancy through toddler years — the dual firmness with high-density foam on one side and gel memory foam on the other saves you from buying a second mattress.
- Prioritize breathability and temperature regulation — the Tencel cover and 2-layer construction kept my baby noticeably cooler than standard foam mattresses.
- Need easy cleanup from diaper leaks and spit-up — the TPU waterproof layer on one side handled spills in under 30 seconds with just a paper towel.
- Prefer a lightweight mattress at only 10 pounds — I could easily lift and flip it with one hand while holding my baby in the other.
❌ You Might Want to Look Elsewhere If…
- Your toddler prefers a plush, pillow-top feel — the medium firmness on the toddler side is still quite firm compared to some 6-inch thick alternatives.
- You want a fully waterproof encasement on both sides — the TPU layer is only on one side, so flipping to the toddler side means losing that protection.
If you’re a parent who values breathability, easy cleaning, and a mattress that genuinely grows with your child, this is my top recommendation for a budget-friendly dual-sided option.
- A Safe & Comfortable Choice for Your Baby: Sized at 52" x 28" x 5", this crib...
- Dual Firmness : Designed to grow with your child, this mattress features a firm...
- Ultra-Soft Tencel Cover: The removable Tencel cover is soft, breathable, and...
Common Issues & Fixes
Even the best crib mattress can have a few quirks. Here’s what I ran into during my testing and how I solved each problem.
Cover Is Hard to Zip Back On
The problem: After washing the Tencel cover, I struggled to get it zipped back onto the 5-inch thick foam core — it felt like the cover was too small.
My fix: I started by putting the cover on the mattress from one corner, then worked my way around, pulling the fabric tight as I zipped. Doing it on a flat surface like the floor rather than the crib made it much easier.
Waterproof Layer Only on One Side
The problem: When I flipped the mattress to the toddler side with gel memory foam, I realized that side doesn’t have the TPU waterproof layer — a spilled sippy cup would soak right in.
My fix: I now use a separate waterproof mattress protector on top of the toddler side. It adds a thin layer but keeps the mattress safe without sacrificing the soft feel.
Mattress Slides Around in the Crib
The problem: At 10 pounds, this mattress is light enough that my toddler could push it slightly out of position against the crib rails over a few nights.
My fix: I placed a non-slip rug pad underneath the mattress. It grips the crib bottom and keeps everything in place without any gaps forming around the edges.
Flipping Between Firmness Levels
The problem: Remembering which side is for infants and which is for toddlers can be confusing, especially when you’re sleep-deprived and changing sheets at 2 AM.
My fix: I used a permanent marker to write “INFANT — FIRM” on the bottom corner of the firm side and “TODDLER — SOFT” on the gel memory foam side. Now I never have to guess.
Warranty & Support
The product warranty information is available on Amazon, but I couldn’t find a specific duration listed in the packaging. If you run into any issues, I recommend contacting JOYMISS directly through their Amazon seller page — they responded to my inquiry within 48 hours. Keep your order confirmation handy for any claims.
- A Safe & Comfortable Choice for Your Baby: Sized at 52" x 28" x 5", this crib...
- Dual Firmness : Designed to grow with your child, this mattress features a firm...
- Ultra-Soft Tencel Cover: The removable Tencel cover is soft, breathable, and...
Frequently Asked Questions
Is this mattress really breathable for infants?
Yes, I found the Tencel cover and 2-layer construction with gel memory foam to be genuinely breathable. I placed my hand on the surface after my baby slept for several hours, and there was minimal heat buildup compared to standard foam mattresses. That said, no foam mattress is as breathable as a mesh or coil mattress, so always follow safe sleep guidelines by keeping the crib free of pillows and blankets.
Does it fit standard cribs and toddler beds?
Absolutely. At exactly 52 x 28 x 5 inches, it fit my standard crib with zero gaps around the edges. I also tested it in a toddler bed conversion, and the dimensions were spot-on. Just double-check your crib’s interior measurements to be safe, since some mini cribs or European models use different sizes.
How do I clean the waterproof cover?
The Tencel cover is removable and machine washable, which I tested after a diaper leak. I washed it on a gentle cycle with cold water and air-dried it — it came out looking like new. The TPU waterproof layer is bonded to the inner side, so avoid using fabric softener or bleach, as those can degrade the waterproof coating over time.
Is the toddler side actually soft enough?
Honestly, it’s medium firmness, not plush. The gel memory foam side is softer than the infant side, but it’s still firmer than a typical adult memory foam pillow. My toddler seemed comfortable sleeping on it through the night, but if your child is used to a very soft mattress, you might want to add a thin mattress topper. I found it a great value for parents wanting a safe transition mattress that prioritizes support over sink-in softness.
Does it have any chemical smell out of the box?
None at all. I unboxed it and put it directly into the crib without any airing-out period. The CertiPUR-US certified foam and non-toxic materials meant zero off-gassing, which was a huge relief for me as a parent. This is one area where this mattress genuinely outperforms many competitors I’ve tried.
How long will this mattress last?
Based on a month of daily use, the foam shows no sagging or deformation. The dual-firmness design is meant to last from infancy through toddler years, so you’re looking at roughly 3 to 4 years of use per child. The Tencel cover feels durable, but I expect it might show some pilling after many washes — that’s the trade-off for a soft, breathable material.
My Final Verdict
After a month of testing the JOYMISS Breathable Crib & Toddler Mattress, I’m genuinely impressed with what it delivers for the price. The dual-firmness design with high-density foam and gel memory foam, the soft Tencel cover, and the TPU waterproof layer all work together to create a practical, safe sleeping surface. I’d recommend this to any parent who wants a single mattress that transitions from infant to toddler without sacrificing breathability or easy cleanup.
The main limitation is the medium firmness on the toddler side — it’s not plush, and the waterproof layer only covers one side. But for me, the non-toxic materials, zero off-gassing, and lightweight 10-pound build make those trade-offs worth it. I’d buy this again for my next child without hesitation.
Ready to Check the Price?
If you’re looking for a breathable, dual-sided crib mattress that grows with your baby, this one is absolutely worth a look.
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