Choosing the right cot mattress cover with a zipper helps protect a child’s mattress from spills, bedwetting, and allergens while keeping cleaning simple. This guide highlights five relevant cot-size, zipper-enabled options and explains how features like waterproof layers, breathable fabrics, and secure zippers contribute to comfort and durability. Each product is evaluated on materials, fit, and maintenance to help you pick a practical, long-lasting solution for American households.
| Product | Brand | Depth/Size | Key Benefit |
|---|---|---|---|
| BLISSFORD Plastic Mattress Protector Zippered Cot Size | BLISSFORD | 9″ or 16″ deep options | Waterproof, durable vinyl encasement with reinforced zipper |
| RV 6 Sided Zippered Mattress Protector with Secure Locking Zipper | Allersoft | 3-8″ depth (fits flexible) | Full-coverage, six-sided zip, quiet and cool fabric |
| 100% Cotton Fleetwood Mattress Cover, Cot Size | Gilbins | Cot size | 100% cotton, dye-free per natural pigments |
| Cot Size Mattress Protector Waterproof, Viscose Terry | Moonsea | Cot depth fits 5″-10″ heights | Breathable, 100% waterproof TPU layer, noiseless |
| Cot Zipper Fitted Sheet – 400TC Egyptian Cotton | Yarns of Cotton | 30″ x 75″ up to 8″ deep | Wrinkle-free, hotel-quality cotton with zipper |
BLISSFORD Zippered Cot Mattress Protector

The BLISSFORD vinyl mattress cover is designed for cot mattresses with a zip closure and reinforced zipper. It provides waterproof protection to keep the mattress dry from spills and bedwetting. The heavy-duty vinyl is described as durable and easy to wipe clean, addressing households with kids or pets. Availability includes 9″ and 16″ deep variants to accommodate standard and extra-deep cot mattresses. Note that this cover is not machine washable, and cleaning is done with a damp cloth.
Allersoft 6-Sided Zippered Mattress Protector

This protector uses a six-sided zip to seal the entire mattress and protect against dust, pet dander, pollen, and liquids. The fabric is a soft poly knit designed to remain quiet and cool, avoiding rustling sounds under sheets. It’s especially suited for RVs or campers with shorter depths (3-8 inches), and the secure locking zipper feature helps maintain a tight seal for uninterrupted sleep.
Gilbins 100% Cotton Fleetwood Cot Cover

Made from 100% cotton, this cot size cover emphasizes natural materials suitable for sensitive skin and babies. The cotton is not dyed or heavily processed, allowing natural pigment variations. It functions as a simple, breathable cot cover with zip-around closure, making it easy to secure around the mattress and keep fabrics free from irritants. The listing notes color variation due to natural cotton, which may be a consideration for color-matching in nursery decor.
Moonsea Cot Size Mattress Protector

Moonsea offers a breathable viscose terry mattress protector with a 100% waterproof TPU backing. The product is designed to reduce odors and provide noiseless operation, important for uninterrupted sleep. It fits cot depths of 5-10 inches with a 360° elastic skirt to secure corners and prevent shifting. Machine washing is possible, aiding routine nursery care. The combination of breathable fabric and a waterproof layer balances comfort and protection against liquids and stains.
Yarns of Cotton Cot Zipper Fitted Sheet

This cot zipper fitted sheet uses 400-thread-count Egyptian cotton for a luxurious feel. It is designed to fit mattresses up to 8 inches deep and includes a zipper closure that helps with easy on-and-off changes. The product emphasizes wrinkle resistance and hotel-style quality at an affordable price, making it a practical choice for nursery setups seeking premium cotton materials and simple maintenance.
Buying Guide
Key considerations when selecting a cot mattress cover with a zipper include the following:
- Waterproof versus breathable: If spills and bedwetting are common, a waterproof layer (such as vinyl or TPU-backed fabric) provides better protection. For sensitive-skin infants, breathable cotton or poly knit with a breathable top layer reduces heat buildup.
- Depth and fit: Cot mattresses vary in depth. Look for covers offered in 9″, 16″ or 3-8″ depth ranges to ensure a snug, secure fit without sagging or gaps.
- Six-sided vs three-sided zippers: Six-sided or full encasement zippers provide more complete protection against dust and allergens but may be bulkier to remove. Three-sided or partial zippers are easier to change but might offer less coverage.
- Care and maintenance: Some covers are machine washable, while vinyl or certain vinyl-backed options require wipe-cleaning. Consider the nursery cleaning routine when selecting.
- Materials and sensitivities: For babies with sensitive skin, natural fibers like 100% cotton or finely woven cotton blends are preferable. For households with allergies, a protective barrier that is non-toxic and hypoallergenic is desirable.
- Durability and noise: Vinyl-backed covers can be durable but may be noisier. Soft knit fabrics tend to be quieter but may require more frequent cleaning.
- Certifications and safety: Check for any certifications (like Oeko-Tex) when relevant to protect against harmful substances, especially for crib and cot uses.
When evaluating these products, consider your cot’s depth, your child’s needs (spills, bedwetting, allergies), and how often you want to launder the cover. The combination of a secure zipper, durable materials, and a proper fit will contribute to a protective, comfortable, and easy-to-maintain nursery setup.