How to Choose a Crib Mattress: A Complete Guide

Setting up a nursery is an exciting activity for expectant parents. While choosing a crib and a rocking chair based on your decor preferences, one of the most important purchases to be made will rarely be seen: a mattress for the baby crib. While a crib mattress will always be covered with sheets, choosing the right mattress is crucial for your baby’s safety while they sleep. Read on to learn everything you need to know about how to choose a crib mattress for your baby. We’ll cover organic options and used mattresses and answer parents’ common questions. Remember, always put your baby to sleep on their back.

Why a Good Crib Mattress Matters

A crib mattress is key to your baby’s sleep and overall health. A firm and supportive mattress reduces the risk of suffocation and Sudden Infant Death Syndrome (SIDS). A good mattress also helps with spinal alignment as your baby grows. So, choose the right one for your child’s safety and comfort.

Types of Crib Mattresses

Crib mattresses come in many forms, each with its own features. Read on to learn more.

• Innerspring Mattresses: Innerspring mattresses are the traditional option, with a coil support system that provides firmness and support. These mattresses often come with various comfort layers, such as foam or fiber, and are known for their durability. Just make sure the mattress is firm enough for infants; a soft mattress is a safety risk.
• Foam Mattresses: Foam mattresses are lightweight and often cheaper than innerspring. They come in various types of foam such as memory foam and polyurethane foam. While foam mattresses can provide support, make sure to choose one that’s designed for infants to ensure proper firmness.
• Organic and Natural Mattresses: For parents who want eco-friendly options, organic and natural mattresses made from materials like cotton, wool or latex may be the way to go. These mattresses are free from harsh chemicals and pesticides and provide a healthier sleeping environment for your baby. Just check for certifications that confirm their safety and organic status.
• Dual-Sided Mattresses: Some crib mattresses have dual sides: one side is firmer for infants, the other side is softer for toddlers. This way you can use the same mattress as your child grows and have the right level of support at different stages.

What to Look For in a Crib Mattress

Now that you know the types of crib mattresses, here are the features to consider when you make your decision.

Firmness and Support

The most important feature of a crib mattress is its firmness. A firm mattress reduces the risk of suffocation and SIDS by preventing your baby’s face from sinking into the material. It should bounce back to its original shape when pressed.

How to test for firmness:

• Press the mattress in the middle and at the edges.
• It should be firm and not yield to pressure.

Breathability

Babies can overheat and overheating is another risk factor for SIDS. A breathable crib mattress allows for better airflow to regulate your baby’s temperature. Mattresses with breathable covers or made from organic cotton or wool are great for a cool sleep environment.

Waterproof and Easy to Clean

Accidents happen, especially during the infant stage. A waterproof crib mattress or one with a waterproof cover can make clean-up so much easier. Look for mattresses with a waterproof cover made from vinyl, polyethylene, or other waterproof materials. Some mattresses come with machine-washable, removable covers for added convenience. Just make sure the waterproofing doesn’t compromise the mattress’s breathability.

Hypoallergenic Materials

If your baby has allergies or sensitive skin, consider a crib mattress made from hypoallergenic materials. Organic cotton, wool or latex mattresses can minimize allergic reactions while hypoallergenic covers add an extra layer of protection.

Mattress Weight

You won’t realize how often you’ll need to lift your crib mattress until you change sheets multiple times a week. Foam mattresses are the lightest, weighing 7-12 pounds, while innerspring mattresses can weigh up to 20 pounds. The heavier the mattress, the harder it will be to change crib sheets, so choose based on your personal preference.

Safe Materials

When shopping for a crib mattress one of the most important things to consider is the materials used to make it. Your baby will be in close contact with this mattress for a significant amount of time so it’s crucial to choose a chemical free and non-toxic mattress.

• Phthalates: Regular mattresses use phthalates to make plastics softer and last longer. When a baby sleeps, their body heat can cause the mattress to release more phthalates. We don’t know how bad phthalates are, but some studies link them to breathing problems and fertility issues.
• VOCs: Another concern is VOCs. These are gases emitted from solids or liquids, including some foams and adhesives used in mattresses. They can cause eye, nose and throat irritation, headaches and other health issues. Babies breathe them in. Some types of foam release more VOCs than others. Some independent groups test mattresses for VOCs. If you want an eco-friendly option, look at their labels.
• Flame Retardants: While fire safety is important, some chemical flame retardants have been linked to health issues. Look for mattresses that use natural flame barriers like wool.
• Formaldehyde: Used in adhesives, formaldehyde can cause respiratory irritation and is a known carcinogen.

Crib Mattress Safety Standards and Certifications

When shopping for a crib mattress, always prioritize safety by choosing products that meet or exceed the recommended standards. Several certifications and standards indicate that a mattress is safe for infants.

• CertiPUR-US: This certification means the foam used in the mattress has been tested for low emissions of volatile organic compounds (VOCs) and is free from formaldehyde, mercury and lead. If you’re buying a foam mattress, make sure it has a CertiPUR-US® label.
• GREENGUARD Gold: A Greenguard Gold certified mattress has been tested and proven to emit very low levels of VOCs and other pollutants. This certification is especially important if you’re concerned about indoor air quality as babies are more sensitive to chemicals in their environment.
• GOTS (Global Organic Textile Standard): GOTS certifies that textiles are made with at least 95% certified organic fibers. It also ensures the entire manufacturing process meets strict environmental and social criteria.
• GOLS (Global Organic Latex Standard): This is similar to GOTS but for latex. GOLS ensures that latex is at least 95% organic and meets strict standards for processing and manufacturing.
• Oeko-Tex Standard 100: OEKO-TEX certification means the mattress has been tested for harmful substances and found to be free from them. Mattresses with this label are safe for babies and are usually made from natural eco-friendly materials.
• MADE SAFE: This certification means products are made with ingredients not known or suspected to harm human health, ecosystems or animals.
• Juvenile Products Manufacturers Association (JPMA): The JPMA seal means the crib mattress meets or exceeds all federal safety standards, including firmness and flammability. Look for the JPMA label when buying a mattress, as it signifies a commitment to safety.

Safety Tests to Try

To ensure the safest sleep environment for your little one, it’s important to go beyond reading product descriptions or relying on brand reputation. Conducting your own hands-on safety tests will give you valuable insight into the mattress’s quality and suitability for your baby.

• The Two-Finger Test: This simple test checks for proper mattress fit. Place the mattress in the crib and try to fit two fingers between it and the crib side. If you can fit more than two fingers in this gap, the mattress is too small and a safety risk.
• Firmness Test: Press your hand firmly into the centre of the mattress, then remove it quickly. A safe mattress should snap back into shape immediately and not conform to your hand’s shape. If it retains an indentation, it’s too soft for an infant.
• Edge Support Test: Press down firmly on the edges of the mattress. They should be firm and not collapse easily under pressure. Good edge support prevents a baby from getting trapped between the mattress and crib sides.
• Bounce Test: Gently bounce your hand on the mattress surface. A safe crib mattress shouldn’t be too bouncy as this could potentially cause a baby to roll or shift position during sleep.
• Weight Test: Place a 10-pound weight in the center of the mattress. A safe mattress shouldn’t sag significantly under this weight. This test simulates the weight distribution of a sleeping infant.
• Smell Test: Give the mattress a good sniff. A strong chemical odor could mean the presence of harmful volatile organic compounds (VOCs). A slight “new” smell is normal but it should dissipate quickly in a well-ventilated room.
• Cover Inspection: Examine the mattress cover closely. It should be tightly fitted with no loose threads, weak seams or sharp edges that could be a safety hazard.
• Waterproof Test: If the mattress claims to be waterproof test this by spilling a small amount of water on the surface. It should bead up and not soak into the mattress.
• Breathability Test: If the mattress claims to be breathable, you can test this by placing a thin piece of tissue paper on it and gently blowing it through. You should feel air passing through.

Are Organic Mattresses Worth It?

Organic crib mattresses are made from natural materials like organic cotton, wool, or latex and are grown without synthetic pesticides or GMOs. They may reduce chemical exposure, be more breathable, and have a lower environmental impact. Plus, they can be more durable. However, the term “organic” isn’t tightly regulated in the mattress industry, so it’s important to check a product’s certifications before buying to make sure it meets genuine organic standards.

Risks of Used Mattresses

As expectant parents or caregivers prepare for a new baby the costs can add up quickly. To save money, some might consider buying a used crib mattress. While this may seem like a practical solution, it’s important to understand that crib mattresses are not just another piece of furniture – they play a critical role in your baby’s safety, health and development.

Infants spend up to 18 hours a day sleeping, so the crib mattress is one of the most used items in a nursery. This extended contact means any issues with a mattress can have a big impact on a baby’s well-being. A gently used stroller or hand-me-down onesie might be fine but it’s important to know the risks of a secondhand mattress:

• Hygiene Concerns: Even with a deep clean, used mattresses can harbour bacteria, mold, mildew and dust mites deep within their layers. These can be harmful especially for infants with developing immune systems.
• Structural Integrity: Mattresses can lose their firmness and develop sagging spots over time. This compromises the flat, firm surface recommended for infant sleep safety.
• Outdated Safety Standards: Older mattresses may not meet current safety regulations. Safety standards are updated regularly and an older mattress may not comply with the latest guidelines.
• Chemical Exposure: Older mattresses may contain chemicals that are now known to be harmful like certain flame retardants that have since been banned.
• SIDS Risk: Some studies have suggested a link between used mattresses and an increased risk of Sudden Infant Death Syndrome (SIDS), although more research is needed in this area.
• Wear and Tear: Visible signs of wear like tears, holes or stains can indicate deeper damage that can compromise the mattress’s safety.
• Fit Issues: A used mattress may not fit your crib properly, potentially creating gaps between the mattress and crib sides.
• Allergen Buildup: Used mattresses can accumulate allergens over time, triggering allergic reactions or respiratory issues in some infants.
• Voided Warranty: Most manufacturers’ warranties are void if more than one child or family uses the mattress.

If you must use a secondhand mattress make sure to inspect it thoroughly for any damage, wear or contamination. Ideally only accept a used mattress from someone you trust who can verify its history and condition. Even then consider using a waterproof, hypoallergenic cover for extra protection.

FAQs about How to Choose a Crib Mattress

How often should I replace my crib mattress?

Every 5 to 10 years, depending on wear and tear. If your mattress is sagging, damaged or has a persistent smell, it’s time to replace it.

Can I use a secondhand crib mattress?

Using a secondhand mattress can be cost-effective, but make sure it meets current safety standards and is damage-free and wear-free. If you do use a secondhand mattress, deep clean it and check for mold or odors.

What is the best firmness for a crib mattress?

The best firmness for a crib mattress is one that is firm enough to support your baby’s developing body and reduce the risk of suffocation. Press down on the mattress it should spring back quickly to its original shape without sinking.

Are organic crib mattresses worth it?

Organic crib mattresses are worth it if you want non toxic materials and environmental sustainability. They are made from natural materials that are safer for your baby and the planet but may cost more.

How do I clean a crib mattress?

Vacuum the mattress to remove dust and debris. For stains use a mild detergent and water and spot clean the area. If the mattress has a removable cover wash it according to the manufacturer’s instructions.

Conclusion: Make Your Final Decision

Choosing the best crib mattress for your baby comes down to understanding the types, safety features, and your personal preferences. Firmness and safety are the most important factors for newborn sleep. Then, consider breathability, material, and ease of cleaning based on your lifestyle.

If you are on a tight budget a foam mattress can be good value without compromising on safety. If eco friendliness is a priority look for an organic mattress with certifications like Greenguard Gold or OEKO-TEX. And if you’re looking for longevity, a dual-sided mattress might be your best investment. By taking the time to research and weigh your options, you can make an informed decision that ensures your baby has a safe, comfortable, and supportive sleep environment.