Crib Mattress Cover Materials: Vinyl, Cotton, or Bamboo

What to look for in a crib mattress cover

A crib mattress cover protects the mattress from spills, leaks, and daily wear. The material affects how the mattress feels, how easy it is to clean, and how well it breathes. When reading a listing, you may see the cover material named in the title or bullet points. Common words include vinyl, cotton, bamboo, or a blend such as cotton with a waterproof backing.

Three properties matter most when comparing cover materials: breathability, waterproofing, and skin sensitivity. Breathability refers to how well air passes through the cover, which can affect temperature regulation. Waterproofing keeps liquids from soaking into the mattress. Skin sensitivity describes how the fabric feels against a baby's skin. No single material is best for every buyer; the right choice depends on your priorities. For a broader look at crib choices, see our best crib guide.

Vinyl covers: waterproof and easy to clean

Vinyl is a synthetic material often used as a full cover or as a waterproof layer under a softer fabric. A vinyl cover is completely waterproof, meaning spills and diaper leaks stay on the surface and can be wiped away with a damp cloth. This makes vinyl covers very easy to clean and maintain.

The trade-off is breathability. Vinyl does not allow air to pass through as freely as natural fabrics. Some parents find that a vinyl cover can feel less breathable, especially in warmer rooms. Many mattress listings combine a cotton or bamboo top layer with a vinyl backing to get both softness and waterproofing. When you see a listing that says "waterproof cover," it often means a vinyl or polyurethane layer is included. If you are looking for a mattress with a waterproof cover, check our best crib and mattress bundles.

Cotton covers: breathable and soft

Cotton is a natural fiber known for its softness and breathability. A cotton cover feels gentle against skin and allows air to circulate, which can help keep the sleeping surface cool. Cotton is often the preferred material for parents who prioritize a soft, natural feel.

Cotton alone is not waterproof. Most cotton crib mattress covers are paired with a waterproof backing, often made of vinyl or polyurethane. The listing will usually state "cotton cover with waterproof backing" or "cotton top layer." Some cotton covers are removable and machine washable, making them easy to keep clean. When reading a listing, look for the words "cotton" or "cotton blend" in the cover description. For full-size cribs with cotton covers, see our best full-size cribs guide.

Bamboo covers: a blend of properties

Bamboo-derived fabric is a plant-based material that has become common in crib mattress covers. Listings often describe bamboo covers as breathable, moisture-wicking, and soft. Bamboo fibers are naturally porous, which allows air to move through the fabric. Some listings also describe bamboo as naturally resistant to odors or bacteria, though these are marketing claims and not measured by this site.

Like cotton, bamboo covers are not fully waterproof on their own. Most bamboo covers include a waterproof layer underneath. The combination aims to provide breathability and a soft feel while still protecting the mattress. If you see "bamboo cover" in a title, check the bullet points for details about a waterproof backing. Bamboo covers are often marketed as a middle ground between the softness of cotton and the easy cleaning of vinyl. For mini crib options with bamboo covers, see our best mini cribs guide.

Breathability versus waterproofing: what matters more

Breathability and waterproofing are often at odds. A fully waterproof cover, such as a vinyl cover, blocks liquids but also limits airflow. A breathable cover like cotton allows air to pass through but does not stop liquids. Many parents choose a mattress that has a breathable top layer with a waterproof backing. This way, the surface that touches the baby is soft and breathable, while the mattress core stays dry.

If you live in a warm climate or your baby tends to sleep warm, breathability may be a higher priority. If you are concerned about leaks and easy cleanup, waterproofing may come first. The best approach is to look for a cover that clearly states both a breathable top material and a waterproof layer. The listing will often say "cotton cover with waterproof backing" or "bamboo cover with waterproof membrane." For more options, see our best crib guide.

Skin sensitivity and material choice

Some babies have sensitive skin that may react to certain fabrics. Cotton and bamboo are often described as gentle and are commonly chosen for their soft feel. Vinyl, while waterproof, can feel less soft and may not be as gentle against skin. Many parents who prefer a soft surface choose a mattress with a cotton or bamboo top layer, even if the backing is vinyl.

When reading a listing, look for words like "soft," "gentle," or "hypoallergenic" in the cover description. These are marketing terms and are not verified by this site, but they can help you identify covers that are marketed for sensitive skin. If you have specific concerns about skin reactions, consult your pediatrician. For general guidance on safe sleep environments, refer to the CPSC and Safe to Sleep resources. For cribs with GREENGUARD Gold certification, see our best GREENGUARD Gold cribs guide.

GREENGUARD certification and mattress covers

Some crib mattress listings include a GREENGUARD or GREENGUARD Gold certification claim. This is a mark from UL Solutions that indicates the product has been tested for chemical emissions according to their standards. The certification is about the entire mattress, not just the cover, but the cover material can affect emissions. GREENGUARD Gold sets lower emission limits and is often used for products intended for nurseries.

If you see GREENGUARD on a listing, it means the manufacturer has submitted the product for certification. The UL Solutions page explains the criteria. This site reports the certification as a listing claim only; we do not verify it. For more information, visit the UL GREENGUARD page. To compare cribs with this certification, see our best GREENGUARD Gold cribs guide.

What to pick for your situation

Questions

Is vinyl safe for a crib mattress?

Vinyl is a common material used for waterproofing in crib mattress covers. For guidance on safe sleep environments, refer to the CPSC Safe Sleep page and the Safe to Sleep campaign. For more on mattress types, see our crib mattress type comparison.

Can I use a mattress cover separately?

Some crib mattresses come with a removable cover. Check the listing details to see if the cover is removable and washable. For bundle options, see our best crib and mattress bundles.

Are bamboo covers better than cotton?

Both materials have different properties. Bamboo is often described as moisture-wicking, while cotton is known for breathability. Choose based on your priority. Many mattresses combine both with a waterproof layer. For more on materials, see our crib wood type comparison.

How do I clean a crib mattress cover?

Follow the manufacturer's instructions. Many vinyl covers can be wiped clean, while cotton and bamboo covers may be machine washable. Always check the care label.

Do all crib mattresses have a cover?

Most crib mattresses include a cover. Some covers are permanently attached, while others are removable and washable. The listing will usually state the cover material and whether it is removable.

What does GREENGUARD certification mean for a cover?

GREENGUARD certification is a claim by the manufacturer about low chemical emissions. The UL Solutions page explains the criteria. This site reports the certification as a listing claim only. For certified cribs, see our best GREENGUARD Gold cribs guide.

Can I replace the cover on my crib mattress?

Some mattresses have removable covers that can be replaced. Check the product details or contact the manufacturer for replacement options.