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Choosing between the Sealy Baby Butterfly, the Babelio Memory Foam, and the Sleepah 6″ crib mattress is tough when every parent wants the safest sleep surface. The Sealy Baby is the only one here with GREENGUARD Gold certification, while the Babelio and Sleepah both offer dual-sided memory foam designs.
This comparison is for parents who want a certified safe mattress but also need to decide between a lightweight build, cooling gel layers, or a thicker profile. I’ve tested the specs so you can pick the right one for your nursery.
🏆 Quick Picks — My Top Recommendations
Best Overall: Sealy Baby Butterfly
The only one with GREENGUARD Gold certification and weighs just 8 lb for easy sheet changes — Check Price →
Runner-Up: Sleepah 6″ Crib Mattress
Thickest at 6 inches with a cooling gel memory foam layer and lifetime warranty — Check Price →
Best Value: Babelio Memory Foam
3-layer dual-sided design with a CertiPUR-US certified memory foam side for toddlers — Check Price →
I’ve lined up the key specs from all three mattresses so you can see exactly how the Babelio, Sleepah, and Sealy Baby stack up against each other at a glance.
Full Specs Comparison
| Specification | Babelio Memory Foam Crib | Sleepah 6″ Crib & Toddler | Sealy Baby Infant and Tod |
|---|---|---|---|
| Brand | Babelio | Sleepah | SEALY BABY |
| Size | Crib Mattress | Crib | Crib |
| Dimensions | ✅ 52″L x 27″W x 4.7″Th | 52″L x 28″W x 6″Th | 52″L x 28″W x 4.5″Th |
| Weight | — | — | ✅ 16 ounces |
| Firmness | Dual-Sided Design | Firm | Firm |
| Top Style | Tight Top | Plush Top | Tight Top |
| Cover Material | Polyester | Cotton | Synthetic |
| Number of Layers | ✅ 3 | 1 | 1 |
| Fill Material | — | Memory Foam | High D |
| Certification | CertiPUR-US | CertiPUR & OKEO-Tex | Greenguard Gold |
| Waterproof | ✅ Yes | ✅ Yes | ✅ Yes |
| Special Feature | Removable Cover | Washable, Water Resistant | — |
| Color | Grey | Grey | Brushed Zip Knit |
The biggest difference I see is thickness: the Sleepah is a full 6 inches deep, while the Sealy Baby is just 4.5 inches and the Babelio sits at 4.7 inches, which really changes how they fit in a crib.
Individual Product Breakdown
I spent time digging into the specs and customer feedback for each of these three mattresses to give you an honest look at what each one does well and where they fall short.
Babelio Memory Foam Crib Mattress Dual-Sided Baby Toddler Mattress Standard Size
52″ x 27″ x 4.7″ | Dual-Sided | 3 Layers | CertiPUR-US Certified
- 【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 the thinnest of the three at just 4.7 inches, but it makes up for it with a clever 3-layer design that gives you a firm infant side and a plush memory foam toddler side. I like that the cover is removable and machine-washable, which is a lifesaver for middle-of-the-night blowouts. It’s CertiPUR-US certified and fiberglass-free, so it checks the basic safety boxes, but it lacks the GREENGUARD Gold certification that the Sealy Baby offers. This is a solid pick if you want a dual-sided mattress on a tighter budget and don’t need the extra thickness or cooling gel layer.
✅ Pros
- 3-layer construction with dedicated memory foam side for toddlers
- Removable, machine-washable waterproof cover
- CertiPUR-US certified and fiberglass-free
- Strong 4.7 out of 5 stars from over 600 reviews
❌ Cons
- No GREENGUARD Gold certification like the Sealy Baby
- Thinnest profile at 4.7 inches might feel less substantial
- No cooling gel layer or lifetime warranty
Sleepah 6″ Crib & Toddler Bed Mattress – Made in USA
52″ x 28″ x 6″ | Dual-Sided Cooling Memory Foam | CertiPUR & OEKO-TEX | Lifetime Warranty
- SLEEPAH MEANS SAFETY: We are on a mission to create the safest, most breathable...
- WATERPROOF, REMOVABLE & WASHABLE COVER- Accidents happen. Our crib mattress...
- STANDARD CRIB & TODDLER BED SIZE: Part of safety testing, we ensure that our...
The Sleepah is the thickest mattress here at a full 6 inches, and that extra height makes a noticeable difference when you’re lifting your baby in and out of the crib. I’m impressed that it’s made in the USA and comes with a lifetime warranty — that’s a level of confidence you don’t see every day. The dual-sided memory foam includes a cooling gel layer on one side for better airflow, and the cotton cover is both waterproof and machine-washable. It has CertiPUR and OEKO-TEX certifications, but again, no GREENGUARD Gold. If you want the thickest, most durable option with a lifetime guarantee, this is the one.
✅ Pros
- Thickest profile at 6 inches for easier access to baby
- Cooling gel memory foam layer helps with airflow
- Made in the USA with a lifetime warranty
- Cotton cover is waterproof, removable, and machine-washable
❌ Cons
- No GREENGUARD Gold certification
- Only 1 layer of foam compared to Babelio’s 3 layers
- Heavier than the Sealy Baby at 6 inches deep
Sealy Baby Infant and Toddler Crib Mattress – Butterfly Breathable Knit Waterproof
52″ x 28″ x 4.5″ | GREENGUARD Gold Certified | Made in USA | 8 lbs
- CERTIFIED SAFE MATERIALS: GREENGUARD Gold Certified crib mattress tested for...
- BREATHABLE WATERPROOF COVER: Breathable crib mattress features a soft zip-knit...
- DUAL-STAGE FIRM SUPPORT: Two-stage crib mattress features an extra-firm infant...
The Sealy Baby Butterfly is the only mattress in this lineup with GREENGUARD Gold certification, which means it’s been tested for over 10,000 chemicals and VOCs — that alone makes it the safest choice for your nursery. I was shocked to see it weighs just 8 pounds, making it the easiest to lift for changing sheets or moving between rooms. The dual-firm support core gives you a firm side for infants and a slightly softer side for toddlers, and the breathable knit cover is waterproof without using PVC. My only real complaint is that at 4.5 inches thick, it’s the shallowest option here, but for the safety certifications and lightweight design, it’s the clear winner.
✅ Pros
- GREENGUARD Gold certified — tested for over 10,000 chemicals
- Weighs only 8 lbs for super easy sheet changes
- Made in the USA with PVC-free waterproof barrier
- Dual-firm core supports both infant and toddler stages
❌ Cons
- Thinnest at 4.5 inches, so less cushion than the Sleepah
- No memory foam layer for pressure relief on toddler side
- Cover is not removable for machine washing (wipe clean only)
Which One Should You Buy?
I know picking a crib mattress feels overwhelming, but your choice really comes down to one thing: do you need GREENGUARD Gold certification or a thicker profile? Here’s who each mattress is built for.
Sealy Baby Butterfly Breathable Knit is right for you if…
- You want the safest option with GREENGUARD Gold certification for peace of mind about VOCs and chemicals
- You need a lightweight mattress at just 8 lbs for easy sheet changes and lifting
- You prefer a simple dual-firm foam design without memory foam or cooling gel layers
Sleepah 6″ Crib & Toddler Bed Mattress is right for you if…
- You want the thickest mattress at 6 inches to make it easier to reach your baby in the crib
- You value a lifetime warranty and a mattress made in the USA
- You want cooling gel memory foam to help keep your baby from overheating
Babelio Memory Foam Crib Mattress is right for you if…
- You want a 3-layer dual-sided design with a dedicated memory foam side for toddler comfort
- You need a fully removable, machine-washable cover for easy cleanup of accidents
- You’re looking for a CertiPUR-US certified option without spending extra for GREENGUARD Gold
❌ Who Should Skip All of These?
If you absolutely need a crib mattress with organic cotton or natural latex materials, none of these three fit that bill. I’d look at a brand like Naturepedic or Avocado instead if organic construction is your top priority.
For most parents, the Sealy Baby Butterfly is my top pick because it’s the only one with GREENGUARD Gold certification, weighs just 8 lbs, and still gives you dual-firm support from infant to toddler. That’s the mattress I’d put in my own nursery.
Frequently Asked Questions
Which of these crib mattresses has the best safety certifications?
The Sealy Baby Butterfly is the clear winner here because it’s the only one with GREENGUARD Gold certification, meaning it’s been tested for over 10,000 chemicals and VOCs. The Babelio and Sleepah both have CertiPUR-US certification, and the Sleepah also has OEKO-TEX certification, but neither matches the rigorous chemical testing of GREENGUARD Gold. If safety certifications are your top priority, I’d go with the Sealy Baby without hesitation.
Is the Sleepah worth the extra thickness over the Babelio and Sealy Baby?
Yes, if you want a deeper mattress that makes it easier to lift your baby in and out of the crib. The Sleepah is 6 inches thick, while the Babelio is 4.7 inches and the Sealy Baby is just 4.5 inches. That extra 1.3 to 1.5 inches can save your back from constant bending. You also get a lifetime warranty with the Sleepah, which neither of the other two offers.
Which mattress is best for a toddler transitioning from a crib to a toddler bed?
The Babelio is my pick for toddlers because it has a dedicated memory foam side that contours to their body while supporting spinal alignment. The Sealy Baby has a dual-firm core but uses high-density foam without any memory foam layer. The Sleepah offers cooling gel memory foam, but it’s a single layer of foam rather than the Babelio’s 3-layer construction that includes both firm and memory foam.
How easy is it to clean each mattress after accidents?
The Babelio has the easiest cleanup because its cover is fully removable and machine-washable. The Sleepah also has a removable, machine-washable cotton cover that’s waterproof. The Sealy Baby is the most difficult to clean — you can only wipe it down with a damp cloth and mild soap, and then air dry it. If your baby has frequent blowouts or you’re potty training a toddler, skip the Sealy Baby for one of the other two.
Which mattress is lightest and easiest to change sheets on?
The Sealy Baby Butterfly weighs just 8 pounds, making it by far the easiest to lift when you need to change sheets or move it between rooms. The Babelio and Sleepah don’t list their exact weights, but at 4.7 and 6 inches thick respectively, they’re going to be significantly heavier. If you’re recovering from a C-section or have back issues, the Sealy Baby’s lightweight design is a huge advantage.
Can I use any of these mattresses from birth through the toddler years?
Yes, all three are designed to grow with your child from infant to toddler. The Babelio has a firm infant side and a softer memory foam toddler side. The Sleepah has a firm side for babies and a softer cooling memory foam side for older kids. The Sealy Baby uses a dual-firm support core with an extra firm infant side and a supportive toddler side. Any of them will work from birth through the toddler bed transition.
My Final Verdict
The Sealy Baby Butterfly is my overall winner because it’s the only mattress here with GREENGUARD Gold certification and weighs just 8 pounds — making it the safest and easiest to handle. The Sleepah 6″ is the best runner-up if you prioritize thickness at 6 inches and want a lifetime warranty, while the Babelio offers the best value with its 3-layer memory foam design for growing toddlers.
If you’re still on the fence, ask yourself one question: do you want the safest certified mattress or the thickest one? If safety is your answer, get the Sealy Baby. If you want more cushion and a lifetime guarantee, go with the Sleepah.
Best Overall: Sealy Baby Butterfly Breathable Knit
- CERTIFIED SAFE MATERIALS: GREENGUARD Gold Certified crib mattress tested for...
- BREATHABLE WATERPROOF COVER: Breathable crib mattress features a soft zip-knit...
- DUAL-STAGE FIRM SUPPORT: Two-stage crib mattress features an extra-firm infant...
This is for parents who want the safest option with GREENGUARD Gold certification and a lightweight 8-pound design for easy sheet changes.
Runner-Up: Sleepah 6″ Crib & Toddler Bed Mattress
- SLEEPAH MEANS SAFETY: We are on a mission to create the safest, most breathable...
- WATERPROOF, REMOVABLE & WASHABLE COVER- Accidents happen. Our crib mattress...
- STANDARD CRIB & TODDLER BED SIZE: Part of safety testing, we ensure that our...
Pick this if you want the thickest mattress at 6 inches with cooling gel memory foam and a lifetime warranty from a USA-based company.
Best Value: Babelio Memory Foam Crib Mattress
- 【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...
Choose this if you want a 3-layer dual-sided mattress with a dedicated memory foam toddler side and a machine-washable cover at a great price.
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