Yawnder buying guide · Product and safety information checked October 2026
Quick take
Choose a firm, flat mattress that fits the crib snugly and meets applicable safety standards first. If organic materials or lower chemical emissions matter to you, compare the exact product’s materials and independent certifications next. No certification or “breathable” claim replaces safe sleep practices.
This is a research-based comparison of six products and manufacturer descriptions; it is not a new hands-on ranking or a medical evaluation. Yawnder sells sleep products and may earn a commission through qualifying links.
Start with infant sleep safety
The American Academy of Pediatrics recommends placing babies on their backs for every sleep on a firm, flat, non-inclined surface in a crib, bassinet, play yard or bedside sleeper that meets applicable safety standards. Use a fitted sheet and keep pillows, toys, blankets, bumpers, toppers and other soft objects out of the sleep space. Follow the instructions for the particular crib and mattress.
The mattress should fit snugly without gaps. Full-size and non-full-size products have different requirements; check the crib’s label and instructions instead of assuming a mini crib or play yard can use a full-size mattress. For a dual-sided mattress, use the manufacturer’s designated infant side while the child is an infant, and ask your pediatrician or follow the manufacturer’s guidance on when to switch.
See the AAP’s safe sleep guidance and the CPSC’s crib mattress guidance.
Six crib mattresses to compare
These are examples from the original guide, grouped by the features a parent may want to compare. The descriptions below come from manufacturer information, not a head-to-head safety test. Check the exact size, version, included cover and seller before ordering.
| Mattress | What to compare | Check before buying |
|---|---|---|
| Naturepedic Breathable Organic | Organic cotton fabric and fill, a waterproof surface, removable washable cover and two-stage design; lightweight and innerspring options. | Compare the specific version and its certifications; verify the infant side and care instructions. |
| Avocado Organic Crib Mattress | Two-stage design using organic cotton, wool and latex, with coils. | Check the exact model, any latex sensitivity and whether a compatible waterproof cover is needed. |
| Newton Original | Washable polymer core and washable cover; manufacturer lists GREENGUARD Gold certification. | This is not the same material approach as an organic cotton-and-latex mattress. Confirm whether you want its separate waterproof version. |
| Saatva Crib Mattress | Two-sided coil mattress with a washable cover containing organic cotton; manufacturer lists GREENGUARD Gold certification. | Check current delivery, return and warranty terms. Organic cotton in a cover does not establish that the whole mattress is organic. |
| Lullaby Earth Breathe Safe | Two-stage design with a waterproof surface and removable washable cover. | Confirm the exact construction and cleaning directions; do not treat airflow marketing as a safety guarantee. |
| Babyletto Pure Core 2-Stage | Polyester core, infant and toddler sides, removable waterproof cover; manufacturer lists GREENGUARD Gold certification. | Check the exact cover and dimensions. This is a low-emissions option, not a fully organic mattress claim. |
How to read materials and certifications
GOTS: The Global Organic Textile Standard addresses organic textiles and processing requirements. Look at the certificate and its scope: a certified cotton component, a certified factory and a certified finished mattress are different claims. A mattress made with organic materials can also contain allowed non-organic components, including waterproof layers or coils.
GREENGUARD Gold: This is a chemical emissions certification, not an organic-material certification. It does not mean a product produces no emissions, prevents allergies or is guaranteed safe in every situation. Verify that the exact product carries the certification.
Natural and “non-toxic” claims: Natural materials are not automatically safer or free of allergens, and “non-toxic” is not a substitute for a documented standard. Compare the actual ingredients and certifications rather than assuming all conventional mattresses are dangerous or all organic mattresses eliminate exposure.
How to choose between them
Fit and firmness
Measure and follow the crib manufacturer’s instructions for mattress size and thickness. A full-size crib and a mini crib are not interchangeable, even if two products look similar online. Use the firm infant surface intended for the age of your child and check for a secure fit after setup.
Waterproofing and cleaning
Think about the work of cleaning spills during the night. Some models have a wipe-clean waterproof surface; others have a removable washable cover or washable core. Read the care label and dry components completely before reassembling. Use only components and fitted sheets intended for that mattress and crib; avoid adding soft padding.
Infant and toddler sides
A dual-stage model can offer a firmer infant side and a different toddler side, but it is not required for every family. Label the infant side when making the bed so it stays facing up. Confirm transition guidance for your child rather than choosing a switch date based on marketing alone.
Budget and policies
Compare the delivered price, not just a sale percentage. Check whether a cover is included, return eligibility for opened crib mattresses, shipping costs, and warranty exclusions. Terms can differ between the manufacturer’s site and another retailer.
What does “breathable” mean?
Some mattresses or covers are designed to allow airflow through their materials. That is a construction feature; it does not prove that a mattress prevents suffocation, overheating or SIDS, and it does not make stomach sleeping or soft bedding safe. Follow the same AAP guidance regardless of the mattress’s marketing.
Frequently asked questions
Is an organic crib mattress required for safe sleep?
No. Prioritize an appropriately firm, flat, snug-fitting sleep surface that meets the applicable standard and use safe sleep practices. Organic certification can help you evaluate materials, but it does not replace those basics.
Are all six mattresses organic?
No. Naturepedic and Avocado offer organic-material designs, while the Newton and Babyletto examples are included as options with listed low-emissions certification and different materials. Read the exact certification scope for each model.
Can a breathable mattress prevent SIDS?
No mattress can guarantee prevention. Place your baby on their back on a firm, flat sleep surface and keep soft items out of the sleep area, as advised by the AAP.
Are organic crib mattresses hypoallergenic?
Not automatically. Materials differ and a child can be sensitive to individual ingredients. If your child has a known allergy or medical concern, discuss the materials with their clinician.
Can I try a crib mattress at Yawnder?
Availability changes. Contact the Encinitas showroom to ask which crib mattresses are currently on display before visiting.
Sources and further reading
- American Academy of Pediatrics: infant safe sleep
- CPSC: crib mattresses
- Naturepedic Breathable Organic product details
- Avocado Organic Crib Mattress details
- Newton crib mattress details
- Saatva crib mattress details
- Lullaby Earth Breathe Safe details
- Babyletto Pure Core details
For Yawnder’s original product coverage, see our My Green Mattress Emily crib review and Naturepedic review hub.