Crib Mattress Checklist: What to Look for in a Safe, Organic Baby Mattress

Choosing a crib mattress is one of the most important decisions you’ll make when setting up your baby’s sleep space. Your little one will spend thousands of hours sleeping (and growing) during their first few years, so it’s essential to find a mattress that’s safe, supportive, and free from harmful chemicals.

Here’s a simple checklist to help you choose a safe, organic crib mattress you can trust.

Choose Certified Organic Materials

Look for mattresses made with certified organic cotton, wool, or latex. Organic materials are grown without pesticides, herbicides, or synthetic fertilizers, reducing your baby’s exposure to harmful chemicals.

Key certifications to look for:

  • GOTS (Global Organic Textile Standard): Ensures organic content and safe manufacturing practices.
  • GOLS (Global Organic Latex Standard): Guarantees certified organic latex with strict chemical safety standards.

Prioritize Non-Toxic Construction

Beyond just materials, make sure the mattress is free from:

  • Chemical flame retardants
  • PVC or vinyl waterproofing
  • Harmful adhesives or glues

Instead, look for natural flame barriers (like organic wool) and non-toxic water-resistant covers. A truly non-toxic crib mattress helps protect your baby’s developing lungs and immune system.

Check for Firmness and Support

Babies need a firm, flat sleep surface to reduce the risk of SIDS (Sudden Infant Death Syndrome). Even if it feels a little firmer than you’d expect, that’s a good thing for newborns.

Test it:

  • Press your hand into the mattress and make sure it quickly bounces back.
  • Avoid mattresses that feel too soft, saggy, or cushioned.

Confirm Breathability

A breathable crib mattress can help regulate your baby’s temperature and reduce the risk of overheating. Look for designs that use natural fibers and allow for airflow through the core and cover.

Organic cotton covers and wool layers naturally wick moisture and promote a cooler sleep environment.

Make Sure It Fits Snugly in the Crib

A crib mattress should fit tight and snug inside the crib frame.No more than two fingers should fit between the mattress edge and the crib. Standard crib mattresses are around 27.5” x 52”, but always measure to be sure. A snug fit ensures safety and prevents gaps where little arms or legs could get trapped.

Look for Dual-Sided Designs (Optional)

A two sided crib mattress is ideal for flipping the mattress over in case of soiling and to extend the life of the mattress through the toddler years.:

Our Emily Organic Crib Mattress is:

  • GOTS and GOLS certified
  • Made with organic cotton, organic wool, and natural latex
  • Free from chemical flame retardants and synthetic materials
  • Crafted for firm, breathable, supportive sleep
  • Two-sided for longevity

Shop the Emily Organic Crib Mattress