By Audrey HayesUpdated November 2026
Shopping for an omi organic crib mattress usually means balancing three things: what the mattress is made of, whether it fits your crib safely, and how easy it is to keep clean. This guide compares seven organic and natural-material crib mattresses sold on Amazon US. We looked at manufacturer specifications, brand reputation for certifications, and patterns in owner feedback about firmness, weight, and waterproofing. None of these picks were tested in a lab or by our staff, so treat the details below as what manufacturers specify and what owners commonly report.
Our top picks at a glance
- 1
TOP CHOICEBest overallDelta Children CleanEarth Certified Organic Crib and Toddler MattressView on Amazon - 2
TOP CHOICEBest for lightweight handlingNaturepedic Organic Baby Crib Mattress – 2-Stage LightweightView on Amazon - 3
TOP CHOICEBest for dual-sided firmnessOrganic Cotton Covered Dual-Sided Crib Mattress 52×27.5×5.5View on Amazon - 4
Best for a slimmer profileOrganic Cotton Covered 2-Sided Crib Mattress 52×27.5×4View on Amazon - 5
Best for a classic 2-stage designNaturepedic Organic 2-Stage Baby Crib MattressView on Amazon - 6
Best for small spaces and portable cribsNaturepedic Organic Mini Crib MattressView on Amazon - 7
Best budget pickBaby & Toddler Crib Mattress (GREENGUARD Gold)View on Amazon
What we weighed: certifications that can be verified (GOTS, GREENGUARD Gold, CertiPUR-US), a firm and flat sleep surface, a snug fit to crib dimensions, waterproof but breathable covers, and realistic cleaning instructions. Before buying, check the exact crib size your mattress must match, since a gap between mattress and crib frame is a known suffocation hazard.
Our Top Picks
Quick Comparison
| Product | Best for | Key feature |
|---|---|---|
| Delta Children CleanEarth Certified Organic Crib and Toddler Mattress | Families who want a GOTS-certified option | GOTS certification and a 10-year warranty |
| Naturepedic Organic Baby Crib Mattress 2-Stage | Parents who need an easy-to-move mattress | Lightweight 2-stage design, waterproof |
| Organic Cotton Covered Dual-Sided Crib Mattress 52×27.5×5.5 | Parents who want two firmness options | Dual-sided with memory foam core |
| Organic Cotton Covered 2-Sided Crib Mattress 52×27.5×4 | Shallower cribs and tight clearances | 4-inch profile, dual-sided |
| Naturepedic Organic 2-Stage Baby Crib Mattress | Infant-to-toddler use on a standard crib | Ultra-breathable waterproof surface |
| Naturepedic Organic Mini Crib Mattress | Mini cribs, bassinets and play yards | 23.5 x 37.5 x 3 inch footprint |
| Baby & Toddler Crib Mattress (GREENGUARD Gold) | Budget-conscious shoppers | GREENGUARD Gold emissions certification |
Delta Children CleanEarth Certified Organic Crib and Toddler Mattress
Delta Children CleanEarth Certified Organic Crib and Toddler Mattress – GOTS Certified, Non-Toxic Breathable Baby Mattress – Regulates Temperature, 10-Year Warranty
Best for: Families who want a certified organic option with a long warranty.
This is a good fit for parents who prioritize third-party material verification and want a mattress that carries over from crib to toddler bed. Owners often report that it feels firm and holds its shape well.
Key specs
- Certified organic, GOTS per the listing name
- Crib and toddler sizing
- Breathable construction, temperature-regulating per manufacturer
- 10-year warranty
Pros
- GOTS certification is independently verifiable
- Works from crib through toddler bed
- Long warranty period
Cons
- Heavier than lightweight 2-stage designs
- Limited detail on specific foam composition in the listing
Bottom line: A strong first choice for parents who want certification and a mattress that lasts into the toddler years.
Naturepedic Organic Baby Crib Mattress – 2-Stage Lightweight
Naturepedic Organic Baby Crib Mattress – 2-Stage Lightweight Infant & Toddler Mattress – Waterproof Bed Mattress for Crib – Non-Toxic for Baby and Toddler Bed – 52" x 28”
Best for: Lightweight handling and frequent sheet changes.
Parents who make the bed often, or who move a crib between rooms, will appreciate the lighter weight. The two-stage design is meant to give a firmer infant surface that can be adapted as the child grows.
Key specs
- 2-stage design, infant and toddler use
- Lightweight construction
- Waterproof surface
- 52″ x 28″ dimensions
Pros
- Easy to lift and reposition
- Waterproof surface simplifies cleanup
- Standard crib dimensions
Cons
- Thinner profile may not suit every crib depth
- Waterproof surfaces can feel less soft to some sleepers
Bottom line: Best for parents who want a light, easy-to-manage mattress with a clear 2-stage approach.
Organic Cotton Covered Dual-Sided Crib Mattress 52×27.5×5.5
Organic Cotton Covered Dual-Sided Crib Mattress | 2-Stage Premium Memory Foam CertiPUR-US Hypoallergenic Baby Mattress Firm Support for Infant Cooling Gel for Toddler, Waterproof Washable, 52×27.5×5.5
Best for: Parents who want two firmness options in one mattress.
Dual-sided designs let you rotate the surface as your child grows or switch between a firmer and a softer side. The organic cotton cover and memory foam core are the main selling points.
Key specs
- Dual-sided, firm support
- Organic cotton cover
- Memory foam core, CertiPUR-US per listing
- 52 x 27.5 x 5.5 inches
Pros
- Two sleep surfaces in one mattress
- Waterproof and washable cover
- CertiPUR-US foam is verifiable
Cons
- Memory foam can retain some odor when new; air it out fully
- Thicker profile needs a crib with adequate clearance
Bottom line: Good for families who want flexibility and certified foam in a standard-size crib.
Organic Cotton Covered 2-Sided Crib Mattress 52×27.5×4
Organic Cotton Covered 2-Sided Crib Mattress | Premium Memory Foam Hypoallergenic Light 2-in-1 Baby Mattress, Firm Support for Infant Soft CertiPUR Foam for Toddler, Waterproof & Washable | 52×27.5×4”
Best for: Shallower cribs and tight clearance needs.
The 4-inch profile suits cribs where a thicker mattress would sit too close to the rail. It keeps the dual-sided, memory-foam approach of the thicker version.
Key specs
- Dual-sided design
- Organic cotton cover
- CertiPUR-US memory foam per listing
- 52 x 27.5 x 4 inches
Pros
- Lower profile for tighter clearances
- Dual firmness options
- Washable cover
Cons
- Less cushioning than thicker models
- Must be paired with a properly fitted sheet
Bottom line: Pick this if your crib frame leaves little room for a standard-depth mattress.
Naturepedic Organic 2-Stage Baby Crib Mattress
Naturepedic Organic 2-Stage Baby Crib Mattress – Lightweight Infant & Toddler Bed – Ultra Breathable Waterproof Pad – Standard Size
Best for: Infant-to-toddler use on a standard crib.
This is a classic 2-stage option from a brand well known in the organic baby bedding space. It suits parents who want a standard-size, breathable surface that can grow with the child.
Key specs
- 2-stage infant and toddler design
- Ultra-breathable, waterproof surface
- Standard crib size
Pros
- Breathable surface design
- Waterproof without heavy vinyl feel
- Well-established brand
Cons
- Firmness may be too firm for some preferences
- Check fitted sheet compatibility before buying
Bottom line: A dependable standard-size option for families who want a known organic brand.
Naturepedic Organic Mini Crib Mattress
Naturepedic Organic Mini Crib Mattress – Breathable & Lightweight Infant & Toddler Mattress – Waterproof Baby Bed Mattress for Crib – Non-Toxic Mattress for Baby and Toddler Bed – 23.5" x 37.5" x 3"
Best for: Mini cribs, bassinets and small sleep spaces.
The smaller footprint makes this a practical choice for travel cribs, mini cribs and apartments where a full-size mattress does not fit the space.
Key specs
- 23.5 x 37.5 x 3 inches
- Lightweight, breathable construction
- Waterproof surface
Pros
- Fits mini and portable cribs
- Very light to carry
- Easy to wipe clean
Cons
- Not suitable for standard cribs
- Thin profile offers less cushioning
Bottom line: The right choice only if your sleep space is a mini or portable crib.
Baby & Toddler Crib Mattress (GREENGUARD Gold)
Baby & Toddler Crib Mattress, Breathable, Washable, All-Stages Infant to Toddler, Reduces Suffocation Risk, GREENGUARD Gold Newton Baby Crib Mattress & Toddler Bed, Breathable & Washable – White
Best for: Budget-conscious shoppers who still want low-emission certification.
This model carries GREENGUARD Gold certification, which addresses chemical emissions, and it is designed to cover infant through toddler stages. It is a sensible option when certified low emissions matter more than organic cotton.
Key specs
- GREENGUARD Gold certified (per listing)
- All-stages infant to toddler use
- Breathable and washable cover
Pros
- GREENGUARD Gold is a verifiable emissions standard
- Covers multiple growth stages
- Washable design
Cons
- Not marketed as organic in the same way as GOTS products
- Fewer specifics on foam composition in the listing
Bottom line: A practical pick when you want emissions certification at a budget-friendly level.
Buying Guide
Certifications and what they actually mean
“Organic” is not a single regulated term for mattresses. GOTS covers organic textiles, including cotton covers. GREENGUARD Gold addresses chemical emissions into indoor air. CertiPUR-US sets limits on foam ingredients and emissions. Each certifies something different, so check which one matters to you and look for the certifying body’s own listing.
Good picks for this: Delta Children CleanEarth Certified Organic Crib and Toddler Mattress, Baby & Toddler Crib Mattress (GREENGUARD Gold)
Size and crib fit
The mattress should fit the crib frame snugly, with no gap larger than about two fingers between the mattress edge and the frame. Standard cribs typically take a 52 x 28 inch mattress, but measure your frame before buying. Mini cribs need the smaller 23.5 x 37.5 inch size.
Good picks for this: Naturepedic Organic Mini Crib Mattress, Naturepedic Organic 2-Stage Baby Crib Mattress
Firmness and support
Infant sleep surfaces should be firm and flat. Dual-sided designs give you two firmness options, which can be useful as your child grows. Soft bedding and pillows should stay out of the crib.
Good picks for this: Organic Cotton Covered Dual-Sided Crib Mattress 52×27.5×5.5, Organic Cotton Covered 2-Sided Crib Mattress 52×27.5×4
Weight and handling
Lighter mattresses are easier to flip, wash the cover around, and move between rooms. Heavier memory foam models offer more cushioning but are harder to handle during bedding changes.
Good picks for this: Naturepedic Organic Baby Crib Mattress 2-Stage, Naturepedic Organic Mini Crib Mattress
Waterproof covers and cleaning
A waterproof, breathable cover protects the core from spit-up and diaper leaks. Check whether the cover is removable and machine washable, and follow the manufacturer’s washing temperature. Spot-clean the core with a mild solution and let it dry fully before reassembling.
Good picks for this: Naturepedic Organic 2-Stage Baby Crib Mattress, Baby & Toddler Crib Mattress (GREENGUARD Gold)
Durability and warranty
Look for the warranty length and what it covers. Owners often note that foam mattresses show sagging after heavy use, so a longer warranty is a useful signal of manufacturer confidence.
Good picks for this: Delta Children CleanEarth Certified Organic Crib and Toddler Mattress
Use case: crib, toddler bed or travel
Decide how long you need the mattress to last. A crib-only mattress may be fine with a thinner model, while a crib-to-toddler mattress should meet toddler-bed needs. For travel, a mini or portable size is the practical choice.
Good picks for this: Delta Children CleanEarth Certified Organic Crib and Toddler Mattress, Naturepedic Organic Mini Crib Mattress
FAQ
What does “omi organic crib mattress” usually refer to?
People searching this term are generally looking for organic or natural-material crib mattresses from the same product category. Check the exact brand and model name on the listing, since product names vary.
Is a GOTS certification the same as “organic”?
GOTS is a recognized organic textile standard that covers fiber production, processing and labeling. It is one of the more verifiable claims you can check on a mattress or cover.
Do I need a waterproof cover on a crib mattress?
Many parents use one because spit-up and diaper leaks are common. A waterproof, breathable cover protects the core. Use it under a fitted sheet, never as a substitute for one.
How firm should a crib mattress be?
Crib mattresses should be firm and flat to reduce the risk of the baby sinking into the surface. Avoid adding pillows or soft bedding to the crib.
How do I know the mattress fits my crib?
Measure the inside of the crib frame and compare it to the mattress dimensions. There should be no gap larger than about two fingers along the edges.
How often should I replace a crib mattress?
Replace it if it is damaged, sagging, or no longer fits the frame snugly. Check the manufacturer’s guidance for the product you buy.
Can I use a crib mattress for a toddler bed?
Some models are labeled for crib-to-toddler use. Confirm the listing supports toddler use before buying, and consult your pediatrician if you have questions about your child’s sleep setup.
Conclusion
For most families searching for an omi organic crib mattress, the Delta Children CleanEarth model is a strong starting point because of its GOTS certification and long warranty. Parents who need lightweight handling should look at the Naturepedic 2-Stage option, while the dual-sided Organic Cotton models suit those who want two firmness levels. The mini crib model is the right choice only for small or portable sleep spaces, and the GREENGUARD Gold option is the practical budget-minded pick. Always check the fit against your crib before ordering.
Sources
- Federal safety guidance on crib standards and infant sleep environments (cpsc.gov)
- Pediatric recommendations for safe sleep surfaces and bedding (aap.org)
- Background on indoor air quality and chemical emissions from household products (epa.gov)
Related reading
- Simmons Organic Crib Mattress: What to Check Before You Buy (2026)
- Simmons Naturally Safer Organic Crib Mattress: 5 Best Options Compared (2026)
- Simmons Beautyrest Organic Crib Mattress: What to Check Before You Buy (2026)
About Audrey Hayes
Audrey Hayes is part of our editorial team and reviews and edits our natural & eco parenting guides, checking product details against manufacturer specifications and owner feedback.
