A crib mattress encasement is the most complete form of mattress protection available for infant sleep. Unlike a fitted cover that only protects the top surface, a zippered encasement seals the entire mattress - top, bottom, and all four sides - against liquid, dust mites, pet dander, mold spores, and allergens. For families with allergy concerns, pets, or simply a desire for the most hygienic sleep environment possible, an encasement is a smart long-term investment that extends the life of an expensive crib mattress.
| Product | Best For | Est. Price | Rating |
|---|---|---|---|
| Newton Baby Wovenaire Encasement | Breathable full wrap | $40-$55 | 4.8/5 |
| Naturepedic Organic Encasement | Allergy-prone babies | $45-$60 | 4.9/5 |
| Graco Premium Foam Encasement | Budget full protection | $20-$30 | 4.5/5 |
| Safety 1st Zippered Encasement | Easy on/off zip design | $18-$25 | 4.4/5 |
| Colgate Classica Zippered Cover | Firm-fit + full seal | $28-$38 | 4.6/5 |
1. Naturepedic Organic Encasement - Best for Allergy-Prone Families
Naturepedic’s full-zip encasement is constructed from GOTS-certified organic cotton with a non-toxic waterproof barrier that keeps allergens, dust mites, and liquids completely out. The smooth zipper runs all the way around the mattress perimeter and features a zipper flap that prevents metal teeth from contacting the mattress or sheet above it. GREENGUARD Gold certified and free of PVC, phthalates, and flame retardants.
2. Newton Baby Wovenaire Encasement - Best for Maximum Airflow
Newton Baby’s encasement maintains the breathable ethos of their mattress line, using an open-weave outer shell that allows air to circulate through the sides of the mattress while the waterproof top panel protects against spills and moisture. The zip-around design is straightforward to install and remove, and the encasement holds its shape through repeated machine washes. Best paired with the Newton Wovenaire core mattress.
3. Graco Premium Foam Encasement - Best Budget Full-Wrap
Graco’s encasement brings full-perimeter protection to a price point that makes buying a second one for rotation financially painless. The polyester shell is quiet and soft to the touch, and the waterproof membrane blocks liquid penetration without the crinkling sound that cheap encasements often produce. A practical, no-frills option for parents who want full coverage without a premium price tag.
4. Safety 1st Zippered Encasement - Best for Easy Removal
Safety 1st designs this encasement with midnight diaper changes in mind: the zipper track is extra-wide and smooth, allowing one-handed removal even in the dark. The exterior fabric is a quiet cotton-poly blend that doesn’t rustle or crinkle when a baby moves. It covers standard 52×28-inch crib mattresses and most mini-crib sizes with a deep profile that handles both thin foam and thicker innerspring mattresses.
5. Colgate Classica Zippered Cover - Best Firm-Fit Encasement
Colgate’s Classica encasement is engineered to work with the brand’s own firm foam mattress, though it fits most standard crib sizes. The tight-fitting knit exterior holds the encasement flush against the mattress without any bunching, and the food-grade waterproof lining inside the zip-close panel provides a clean, chemical-free barrier. A reliable choice for parents who already trust the Colgate mattress ecosystem.
What to Look For
- Full-perimeter zipper: The zipper should completely encircle the mattress with no gaps or partial openings. A zipper flap over the zipper teeth prevents snags and keeps metal away from the sleep surface.
- Non-toxic waterproof membrane: Avoid PVC or vinyl-backed encasements. Look for TPU (thermoplastic polyurethane) or food-grade waterproof layers that are free of phthalates and BPA.
- Quiet fabric construction: A crinkling or rustling encasement can disturb a light sleeper. Test for noise before committing to a brand.
- Certifications: GOTS, OEKO-TEX Standard 100, or GREENGUARD Gold certification confirms the encasement materials meet strict safety and chemical emissions standards.
Final Thoughts
A quality crib mattress encasement is a one-time purchase that can protect a $200-$400 mattress for years while keeping your baby’s sleep environment hygienic and allergen-controlled. Start with Naturepedic if allergy prevention is the priority, or Graco if you need full protection at a lower cost. Either way, the encasement goes under the fitted sheet - it is always the invisible foundation of a safe, clean crib.
Frequently asked questions
What is the difference between a crib mattress encasement and a mattress cover?+
A cover is a fitted sheet-style protector that only wraps the top and sides of the mattress. An encasement zips completely around the entire mattress - top, bottom, and all four sides - creating a sealed barrier against water, allergens, dust mites, and mold. Encasements offer significantly more protection and are harder to dislodge.
Are crib mattress encasements safe for newborns?+
Yes, when used correctly. An encasement goes underneath the fitted sheet, not directly against the baby's skin. The sleep surface the baby contacts is still the fitted sheet layered on top of the encasement. Ensure the encasement does not add any loft or softness to the mattress surface, and that the fitted sheet still fits snugly over it.
How do I clean a crib mattress encasement?+
Most encasements are machine-washable on a gentle cycle with cold or warm water. Avoid hot water and high heat drying, which can damage the waterproof membrane over time. Always re-zip and check for pinholes or delamination after washing. Replace the encasement if the waterproof layer begins to peel or crack.