Mattress protectors and toppers compared by what the layer is
A protector or topper sits between you and the mattress. Waterproof films, latex, wool and plain cotton do different jobs, and only some of them keep a mattress dry.
Ask what the waterproof layer is made of. Vinyl is the cheap film and generally needs plasticizers; TPU, polyurethane and polyethylene films are the alternatives makers name. Toppers are a different job: latex, wool and cotton cushion but do not keep a mattress dry, and each is wrong for someone with the matching allergy.
Common protector and topper mistakes
- Buying a waterproof layer that does not say what it is — Vinyl (PVC) is the traditional cheap film and generally needs plasticizers, historically phthalates, to stay flexible. Whether the amounts that come off a covered mattress matter is not established, so this is a cheap precaution rather than an alarm.
- A loose pad in a crib — CPSC's guidance for a baby's sleep space is nothing but a fitted sheet. If you add a waterproof layer, it must be crib-made, snug and flat, or skip it.
- Buying too shallow a pocket — Measure the mattress with the topper on it. A 3 inch topper on a 12 inch mattress needs a protector rated for 15 inches or more.
Four kinds of layer, side by side
Two are waterproof protectors and two are toppers or pads. Tap a type for the models we have listed. Certificates are the makers' claims unless we say a register confirms them.
- Type 1Waterproof protectors with a TPU or polyurethane filmOrganic cotton over a thin TPU or polyurethane barrier that keeps liquid out of the mattress.4 picks · $79–$229
- Type 2Latex toppersA layer of natural latex that adds cushion on top of a mattress.2 picks · $179–$397
- Type 3Wool toppersWool fill that wicks moisture and breathes.1 pick · $389
- Type 4Plain organic cotton padsA pad of organic cotton from batting to fabric.1 pick · $298
| Type | Good at | Watch out for | Best for |
|---|---|---|---|
| Waterproof protectors with a TPU or polyurethane film | Does the one job a protector exists for. The makers say the film is made without vinyl, PVC or phthalates, and the GOTS and MADE SAFE registers back the cotton and the product for the first pick. | The film is thin and can wear out with washing. One maker says so plainly and says heavy or prolonged exposure may need a heavier enclosure. High dryer heat can damage it. | Any bed where spills, accidents or a potty-training child are likely. |
| Latex toppers | GOLS is a dedicated organic-latex standard that covers the latex itself. It is a real alternative to a polyurethane foam topper. | Anyone with a latex allergy should skip it. Control Union's search lists GOLS at company level, not by model, and the cheaper pick is thinner than the dearer one. | A household with no latex allergy that wants a firmer or softer feel without foam. |
| Wool toppers | People choose it for temperature. The maker's GOTS certificate is confirmed for the company in the GOTS register. | Not waterproof, and the maker says not to machine wash it. Skip it if anyone has a wool allergy. | A sleeper who runs hot or cold and wants a natural fiber layer. |
| Plain organic cotton pads | A simple cushion with no film and no flame-retardant finishes, per the maker. | It does not repel liquid. Mattress pads must meet a federal flammability rule, and this maker's page does not say how this one does. (A different brand's pad, Avocado's, was recalled in 2024 for failing that rule; we found no Coyuchi recall when we searched on 2026-10-23.) | A cushion layer under a waterproof protector. |
Type 1Waterproof protectors with a TPU or polyurethane filmOur picks · $79–$229
Start here. Check the listing names the film (TPU, polyurethane or polyethylene) and buy a size rated for your mattress depth, including any topper.
Protector without vinyl
Organic cotton jersey over an ultra-thin TPU barrier, which the maker says is made without vinyl or PVC or phthalates. GOTS is confirmed for the company in the GOTS database and MADE SAFE for this product in MADE SAFE's index. Machine washable, 9 to 16 inch pocket.
Five-sided protector
Organic cotton jersey with a TPU coating on the top and all four sides, free of vinyl, PVC and phthalates per the maker. Fits up to 18 inches. Wash warm and dry low: the maker says higher heat damages the waterproof lining.
Plant-based polyurethane film
Organic cotton around a thin polyurethane layer the maker says is derived from corn starch, with GOTS, MADE SAFE and GREENGUARD Gold displayed. The maker reports an Intertek test with no PFAS detected; we did not open the reports. A different Avocado product, its Organic Cotton Mattress Pad Protector (model SFMPAVORG), was recalled in 2024 for failing the federal mattress pad flammability rule. The notice does not name this waterproof protector.
Crib or toddler pad
Organic cotton the maker lists as GOTS certified, with a thin TPU waterproof layer made without vinyl, PVC or phthalates, per the maker. The maker sells flat and fitted styles and we could not confirm which this listing is. A flat pad does not belong in a crib; if you want a waterproof layer for a baby, check the listing says fitted.
Type 2Latex toppersOur picks · $179–$397
A topper changes feel, not hygiene. Pair it with a protector, and air it for a few days before use.
Pure Green Natural Latex Mattress Topper - Soft - 2 Inch - Queen Size (GOLS Certified Organic)
Ingredient panel checked · source
Latex topper, 2 inch
Natural latex from organically grown rubber trees. Control Union's public search lists the company's GOLS certificate as certified, for the company and not by model. Cheaper than the PlushBeds topper, though this one is 2 inch and that one 3 inch.
Premium latex topper
The maker's page says GOLS, Oeko-Tex and GREENGUARD Gold; the Amazon listing repeats only Oeko-Tex and GREENGUARD Gold. GOLS is the maker's claim here: we did not verify it in Control Union's register.
Type 3Wool toppersOur picks · $389
Cover it with a fitted sheet and a protector so a spill never reaches it.
Wool topper
Organic merino wool fill in an organic cotton percale cover, with the maker's GOTS certificate confirmed for the company. Not machine washable.
Type 4Plain organic cotton padsOur picks · $298
Good for comfort, not for protection. Pair it with a protector.
Organic cotton pad
A pad of organic cotton free of chemical finishes and flame retardants per the maker. GOTS is confirmed for the company; we could not confirm MADE SAFE for this pad. It cushions and does not repel liquid.
Two different products get lumped together. A protector keeps liquid out of the mattress and has to be waterproof. A topper or pad changes how the bed feels and is not. Know which job you are buying for before you read a label.
Jump to Compare the layers · The vinyl question · Washing and wear
The vinyl question, kept in proportion
The traditional cheap waterproof film is vinyl (PVC), and it generally needs plasticizers, historically phthalates, to stay flexible. Our phthalates and PVC explainer covers what is and is not known. For a bed, the practical move is small: pick a protector whose listing names the film (TPU, polyurethane or polyethylene) and says it is made without vinyl. If the listing does not name the layer, ask the maker. The question matters most for a crib or toddler bed, where the surface is used for many hours.
Washing and wear
Wash a new organic cotton protector before using it, because some take two to five wash and dry cycles to shrink to size. Follow the label on heat: one maker says higher dryer heat damages the waterproof lining. Waterproof layers wear out, so replace one that stops holding.
For the bed underneath, see the adult and kids' mattress guide and the crib mattress guide. The topper and protector cheat sheet ranks these same picks, and bedding certifications explained covers what each label does and does not check.
Common questions
Cheat sheets for this
Part of the Mattresses & Bedding hub— the rest of our coverage in this category.
Every mattresses & beddingproduct we've reviewed— what we'd buy, what we'd skip, and where each one stands.