Mattress protectors

Cotton and wool protectors for children's mattresses, with moisture barriers fully described.

An absorbent pad and a waterproof protector solve different problems.  We favor natural-fiber options, avoid PVC and added PFAS treatments, and identify any barrier underneath a cotton top.  That lets you choose the protection needed for spills or accidents without assuming the whole product is cotton.

Filter VETTED
Sort:

Utopia Bedding Premium Zippered Mattress Encasement — Twin, 12 in. Utopia Bedding Premium Zippered Mattress Encasement — Twin, 12 in. Why we recommend it: A zippered cover protects all six sides of a child’s twin mattress from spills, rather than covering just the top.  This one uses a polyurethane waterproof layer beneath polyester fabric instead of a vinyl barrier.  It is synthetic, not cotton or wool.  Choose the correct mattress depth, use it under a fitted sheet, and follow the washing instructions. Materials: polyester fabric · polyurethane barrier $15.40★ 4.6 · 60,000+ ratings View on Amazon
Woolroom Deluxe Washable Wool Mattress Protector — Twin Woolroom Deluxe Washable Wool Mattress Protector — Twin ORGANIC COTTONWOOL Why we recommend it: A thin layer of British wool under organic cotton provides everyday protection for a twin mattress without polyester filling or a waterproof film.  The fitted skirt holds it in place beneath the sheet.  Woolroom uses a chlorine-based treatment to make the wool washable, so it is not untreated.  Made in the EU; wash on a wool cycle and line-dry.  It will not stop bed-wetting from soaking through. Materials: British wool · organic cotton · elasticated edging $168.00★ 4.1 · 62 ratings View on Amazon
BedCare All-Cotton Mattress Encasement — Twin BedCare All-Cotton Mattress Encasement — Twin COTTONUSA PRODUCTION Why we recommend it: This zip-around cotton cover encloses a twin mattress instead of protecting only its top surface.  The tightly woven fabric is designed to limit the passage of dust-mite allergens and can be hot-washed, while reinforced seams support repeated laundering.  Made in the USA with a nylon zipper; it is not a waterproof protector.  Cover shown partly unzipped; mattress not included. Materials: cotton fabric · nylon zipper · sewing thread (material unspecified) $91.99 View product
CozyPure Pebble Pique Organic Cotton Mattress Protector — Twin CozyPure Pebble Pique Organic Cotton Mattress Protector — Twin ORGANIC COTTONUSA PRODUCTION Why we recommend it: The pebbled organic-cotton knit adds soft, washable protection against everyday sweat and surface dirt.  Its three fabric layers contain no polyester, and the stretchy fitted corners let the mattress flex beneath your child.  This is an absorbent cover, not a waterproof barrier for overnight accidents.  Made in Virginia; best suited to mattresses 6–12 inches deep.  Mattress not included. Materials: organic cotton matelasse knit (all three fabric layers) $207.90 View product
MiteGuard Cotton Mattress Encasement — Double MiteGuard Cotton Mattress Encasement — Double COTTON Why we recommend it: Tightly woven cotton encloses the mattress, with an inner flap covering the zipper.  Made in New Zealand, it offers a washable dust-mite barrier without a waterproof membrane or padded filling.  It will not stop spills.  The Double size measures 74.8 × 54.3 × 9.4 inches; measure your mattress before ordering.  Cover only.  Price is in NZD; international shipping is extra. Materials: cotton barrier fabric · YKK zipper NZD 357.28 View product
Obasan Organic Cotton Mattress Protector — Twin, 6–8 in. Depth Obasan Organic Cotton Mattress Protector — Twin, 6–8 in. Depth ORGANIC COTTON Why we recommend it: A soft cotton-knit cover catches everyday moisture and skin oils, helping keep a child's mattress clean.  It stretches with the mattress and removes for washing.  Made in Canada with perimeter elastic, it suits routine bed care but is not waterproof; choose a different protector if overnight accidents are the main concern. Materials: organic cotton fabric · elastic edge (composition not specified) $239.00 View product
Obasan Organic Wool Mattress Protector — Twin Obasan Organic Wool Mattress Protector — Twin ORGANIC WOOL Why we recommend it: A layer of wool helps absorb everyday moisture and protect the mattress, making this a useful option for families who prefer natural-fiber bedding.  Elastic corner straps keep the twin pad in place.  It needs gentle washing and air drying, and its water resistance is not a substitute for a waterproof barrier when heavy overnight accidents are likely. Materials: organic wool fabric · elastic corner straps (composition not specified) $209.00 View product
Organic Bed & Baby Cotton Mattress Encasement — Twin, Natural Damask Organic Bed & Baby Cotton Mattress Encasement — Twin, Natural Damask ORGANIC COTTON Why we recommend it: Organic cotton covers every side of the mattress, giving a child's twin bed a washable layer against dust and everyday wear.  The three-sided zipper makes removal easier.  This unpadded cover is not waterproof or intended for a crib.  Choose Natural Damask and specify the mattress depth.  Custom-made; fabric and dimensions vary. Materials: organic cotton fabric · nylon zipper · metal zipper head $159.00 View product
Shepherd's Dream Melton Wool Mattress Protector — Twin Shepherd's Dream Melton Wool Mattress Protector — Twin WOOLUSA PRODUCTION Why we recommend it: Dense melton wool adds a washable, absorbent layer without a plastic waterproof backing.  The pre-shrunk fabric sits beneath a fitted sheet, held by elastic corner straps whose fiber blend is not specified.  Handmade in California for a twin bed; it is not waterproof protection for heavy spills.  Folded protector shown; mattress not included. Materials: melton wool fabric · elastic corner straps (fiber blend unspecified) · serging thread (composition unspecified) $215.00 View product
St. Dormeir Wool Mattress Protector — Twin St. Dormeir Wool Mattress Protector — Twin COTTONWOOL Why we recommend it: For a child’s bed that needs everyday protection from perspiration rather than a waterproof barrier, this washable protector uses absorbent wool under cotton terry.  The fabric also has a polyester base, and an elasticized skirt holds it in place.  It will not stop bedwetting from reaching the mattress; choose waterproof protection when needed.  Follow the maker’s cold-wash, hang-dry instructions. Materials: wool · cotton pile · polyester base · elastic $199.00 View product
Suite Sleep Organic Cotton Knit Mattress Protector — Twin Suite Sleep Organic Cotton Knit Mattress Protector — Twin ORGANIC COTTONUSA PRODUCTION Why we recommend it: Soft, double-knit organic cotton adds a washable layer between your child and the mattress without a waterproof backing.  The stretchy fabric moves with the mattress, and the fitted skirt accommodates mattresses up to 18 inches deep.  It is not waterproof, so choose it for children who no longer need protection from overnight accidents.  Protector only; mattress and pillows are not included. Materials: organic cotton double-knit fabric · organic cotton jersey skirt $198.00 View product

What we avoid

These are category-level exclusions when materials or treatments are disclosed.  Each product card explains why we recommend it and lists the disclosed materials.

Parabens Phthalates Synthetic fragrance Sulfates (SLS/SLES) Formaldehyde releasers