The 10 Best Allergy Mattress Protectors

The AllerEase Maximum is the cover to pick when allergens are the actual reason you are shopping. It is a zippered encasement, so the whole mattress goes inside it and the closure runs around the perimeter, and the barrier comes from a tightly woven fabric rather than from a polyurethane film bonded to the back. That single design decision drives almost everything people like about it.

Because there is no film, air and water vapour still pass through the fabric. The mattress underneath keeps breathing, body heat is not trapped against a plastic sheet, and there is no crinkle when you roll over. Buyers who tried a waterproof encasement first and gave up on it because of heat or noise are the group that consistently rates this one highest. Under a fitted sheet it disappears, which matters because a cover only works if it stays on the bed.

The limitation is the flip side of the same choice. A woven barrier stops particles, not liquid. If a glass of water goes over, it goes through, and this is not the cover for a toddler bed or for anyone managing incontinence. Fit is the other thing to watch. The sizing is generous for a standard mattress but gets tight on a deep pillow top, so measure the mattress at the seam before ordering rather than trusting the size on the original label.

Bottom line: for a dust mite allergy on a normal adult bed, this is the most comfortable way to get a sealed barrier, and comfort is what decides whether the cover is still on the bed six months later. Add a spill proof layer separately if you need one.

• Type: fully zippered six sided mattress encasement
• Barrier: tightly woven allergen barrier fabric, no laminated film
• Waterproof: no, the fabric is breathable
• Size shown: Queen, with other standard sizes in the range
• Care: machine wash, tumble dry on a low setting
• Closure: perimeter zipper
• Matching pillow encasements sold separately

Adults with a dust mite allergy who want a barrier they will not notice at night, and anyone who has already returned a waterproof encasement because it slept hot or sounded like a plastic bag. It is also a sensible pick for a guest room where spills are unlikely and comfort matters.

It is not the right cover for a child still having accidents, for a bed shared with pets, or for anyone who needs one product to handle both allergens and liquids. Those situations call for a membrane encasement instead.

Wash the encasement every two to three months rather than weekly. It is the barrier, so allergen does not build up on the inside, and repeated hot cycles only loosen the weave that is doing the work. Warm water and a low dryer setting keep the fabric performing.

Keep the weekly hot wash for the sheets and pillowcases that sit on top of it, and check the ends of the zipper track every time the cover comes off. A split at the zipper end turns a sealed encasement back into an ordinary sheet without any obvious sign.

The Hospitology Sleep Defense System solves the problem that trips up most encasement buyers: a measurement that lands awkwardly between two depth ranges. The shell is a stretch knit, so instead of hanging loose or refusing to zip, it pulls itself tight over the mattress and takes up the slack.

That stretch pays off most on a pillow top, where a rigid shell creates a ridge along the seam that you feel through the sheet. This one follows the contour and lies flat. The zipper runs the full three sided path and the cover closes into a genuine sealed unit, with the waterproof layer where it counts on the sleeping surface.

Two caveats. A tight stretch shell telegraphs whatever is underneath, so an older mattress with a sag or a lumpy quilt line will look worse once it is on. And the standard version is rated to roughly 12 inches, which covers most beds but not the tall hybrids that need a specialist cut. The knit also takes a little longer to dry than a thin poly shell.

Bottom line: the most forgiving fit on this list and the right call for pillow tops or any mattress whose depth sits near the edge of a range.

• Type: zippered six sided encasement
• Shell: stretchable knit
• Barrier: waterproof sleeping surface
• Depth: standard, up to about 12 inches
• Closure: full length zipper
• Care: machine wash, low heat dry

Owners of pillow top mattresses and anyone whose depth measurement falls between two published ranges. The stretch shell absorbs an inch of error in either direction.

Also a sensible pick for beds that get stripped often, since the knit goes back on easily.

Wash warm and dry low. Knit shells hold more water than thin poly, so give it a full low heat cycle rather than a hot short one.

Do not iron or steam the cover, and keep it away from bleach, which breaks down the barrier layer.

Most encasements top out around 12 to 15 inches, which leaves owners of tall hybrids and stacked pillow top beds with nothing that will zip. SureGuard's deep cut version exists for exactly that gap, sized for mattresses in the 17 to 20 inch range.

Beyond the size, the build is what you want in a cover that has to stretch around a large slab: a smooth knit face that stays quiet, a waterproof layer across the shell, and reinforced construction at the seams and at the end of the zipper run where the tension concentrates. The maker backs it with a long warranty, which is a reasonable signal of how the seams are put together.

The obvious warning is fit in the other direction. On a standard 10 inch mattress this cover is a tent, and the excess fabric folds into ridges under the sheet. Measure before ordering. Installation on a king at this depth is genuinely a two person job, since the cover is large and the mattress has to be lifted clear at each corner.

Bottom line: the specialist pick for very tall beds, and the only entry here that solves the deep mattress problem outright.

• Type: deep pocket zippered encasement
• Depth range: 17 to 20 inches
• Shell: smooth knit with waterproof layer
• Coverage: all six sides
• Construction: reinforced seams, secured zipper end
• Care: machine wash warm, dry low

Measure from the frame surface to the top of the quilting while the mattress is in place. Only order this cut if the number lands above roughly 16 inches.

Standard profile beds should choose a 9 to 12 inch cover instead, or the excess shell will bunch.

Work with a second person. Stand the mattress on edge, pull the cover down over the top half, lay the mattress flat and work the remaining half on from the foot.

Square all four corners before starting the zipper so the panels are not under tension.

Utopia Bedding is what most people end up buying when the budget has to stretch across more than one bed, and the reason is simple. This is a genuine six sided encasement with a full perimeter zipper and a waterproof backing, which is the same construction premium brands use, sold at a fraction of what a specialist allergy brand asks.

As a barrier it does the job. The laminated backing is a solid layer, so dust mite allergen cannot cross it, bed bugs cannot get in or out, and liquids stay on the outside. The stretch in the fabric means one size covers a useful range of mattress depths, which makes it forgiving if your measurement lands awkwardly between the bands other brands use.

The compromises show up in feel rather than in function. It runs warmer than a woven cover because the backing holds body heat, and it rustles for the first few weeks before the laminate softens. Neither is severe under a fitted sheet, but a hot sleeper will notice. The zipper is the part to treat gently, since the hardware is basic and forcing it around a deep mattress corner is how these covers fail.

Bottom line: the best value on this list by a clear margin, and the sensible choice when you need to cover several beds or want allergen and spill protection from one product. Spend more only if comfort in a warm bedroom is the deciding factor.

• Type: six sided zippered mattress encasement
• Barrier: laminated waterproof backing on a knit face
• Waterproof: yes, full surface
• Blocks: dust mite allergen, bed bugs, liquids
• Size shown: Queen, full size range available
• Fit: stretch construction spanning a range of depths
• Care: machine wash, tumble dry low

Buy this one if the maths matters. Covering a main bed, a guest bed, and a child's bed with a specialist allergy brand costs several times what the same job costs here, and the barrier performance is not meaningfully different. Put the money you save into pillow encasements, which most people skip and which do more for allergy symptoms per dollar than anything else in the bedroom.

Check your mattress depth before ordering even though the fabric stretches. Stretch helps at the margins, but a cover fighting a mattress several inches too deep puts all the strain on the zipper.

Wash every two to three months in warm water and dry on low. Hot water and a hot dryer are what crack a laminated backing, and once the film cracks the cover is no longer a barrier even though it still looks fine.

Close the zipper slowly around the corners and support the mattress edge while you do it. Zipper failure is the most common reason these covers get replaced, and it is almost always caused by force rather than by wear.

Everlasting Comfort built this one around a problem that trips up a lot of allergy shoppers: modern mattresses are thick. A hybrid with a pillow top can run well past the depth a standard cover was designed for, and a cover that will not close is not a barrier at all. The deep pocket design here exists specifically for those beds.

Under the surface it is a conventional and effective build. A waterproof backing blocks dust mite allergen and liquids, and the face fabric is soft enough that the bed still feels like a bed. The noiseless claim holds up better than most in this category, largely because the surface layer is thick enough to muffle the backing underneath.

The trade off is that the same depth that solves the problem creates one if your mattress is normal height. On a standard bed there is spare fabric, and spare fabric bunches at the corners and lifts a tightly fitted sheet. This is a cover to buy after measuring, not before. It also runs warm, as every membrane cover does, so a hot sleeper on a standard mattress should look at a woven option instead.

Bottom line: the right answer for a thick mattress that other covers cannot close around, and a poor fit for anything average. Measure from seam to seam first and the decision makes itself.

• Type: zippered mattress cover with deep pockets
• Barrier: waterproof backing beneath a soft face fabric
• Waterproof: yes
• Blocks: dust mite allergen, bed bugs, liquids
• Depth: designed for unusually thick mattresses
• Size shown: Full, other sizes available
• Care: machine wash, tumble dry low

Measure your mattress from the top seam to the bottom seam and write the number down before you shop. A hybrid marketed as twelve inches routinely measures fourteen or more once the pillow top is included, and that gap is why so many encasements arrive and go straight back.

If your measurement is at the upper end of what standard covers claim, this is the one to choose. If it is comfortably inside the normal range, one of the stretch fit encasements in this list will sit flatter and look better under a sheet.

Wash on a warm cycle every two to three months and dry on low. As with any laminated cover, repeated high heat is what eventually cracks the backing, and a cracked backing is an invisible failure because the fabric still looks intact.

Because there is more fabric here than on a standard cover, shake it out and reseat the corners after every wash. Fabric left bunched under a fitted sheet abrades in the same spot night after night and wears through faster than the rest of the cover.

Linenspa's 360 encasement is the minimalist entry on this list. The shell is thin and smooth, the cover zips around all six faces, and that is the whole proposition. There is no terry pile, no quilted layer, nothing that changes the feel of the mattress underneath.

For a guest room or a low profile bed that is exactly right. A thin shell installs easily, takes up no room in the linen closet, and dries fast after a wash cycle, which matters if you only own one cover per bed. It is also the least likely to bunch, because there is so little material to gather at the corners.

The compromise is acoustic. Without a soft face fabric to muffle it, you hear more of the waterproof layer when you shift position, especially in the first few weeks before the shell relaxes. It also does nothing to smooth over an old mattress; every contour comes straight through. Neither issue matters much on a bed used a few nights a month.

Bottom line: the thin, no fuss option for spare rooms, bunks and low profile mattresses where simplicity beats plushness.

• Type: 360 degree zippered encasement
• Shell: thin smooth polyester
• Barrier: waterproof layer
• Profile: low, standard depth beds
• Closure: full perimeter zipper
• Care: machine washable, quick drying

Guest rooms, bunk beds, dorm mattresses and any bed used occasionally where full enclosure matters more than a plush hand.

Light sleepers on a nightly bed should step up to a terry or brushed knit face instead.

Thin shells dry fast, so a low heat cycle is enough. Avoid high heat, which is what ruins the waterproof layer.

Wash before first use to relax the fabric, which reduces the initial stiffness and noise.

The complaint that ends most waterproof mattress covers is heat, and PlushDeluxe attacks that directly by putting a bamboo derived rayon face over the backing. The fabric moves moisture away from the skin and feels cool to the touch, and the difference against a plain polyester face is noticeable on a warm night.

The rest of the build is solid. The waterproof layer stops liquids and blocks dust mite allergen from crossing the surface, the stretch pockets grip deep mattresses without popping off the corners, and the cover is quiet enough that most people forget it is there. Several buyers use it with no top sheet at all, which tells you something about the hand feel.

Two things to be clear about. This is a fitted protector, not an encasement, so it covers the top and the sides and leaves the underside of the mattress open. For allergen control that is a partial seal rather than a complete one, and if the mattress already holds a large reservoir a fitted cover will not shut it in. It also cannot beat physics: a backing layer is still a backing layer, and a woven barrier with no film will always run cooler.

Bottom line: the pick for a hot sleeper who wants spill protection and a reduced allergen surface without the sweat, as long as you understand you are getting five sided coverage rather than six.

• Type: fitted mattress protector with deep stretch pockets
• Surface: bamboo derived rayon blend
• Barrier: waterproof backing
• Coverage: top and sides, underside left open
• Size shown: King, other sizes available
• Noise: quiet in normal use
• Care: machine wash, tumble dry low

If you gave up on a waterproof cover because you woke up damp, this is the version worth trying next. The bamboo derived face pulls moisture off the skin instead of holding it, and the surface stays closer to room temperature than a polyester face does.

It still will not match a plain woven allergen barrier for coolness, because a barrier film blocks vapour by definition. If temperature is the single biggest issue for you and spills are not a concern, choose a woven cover and skip the waterproofing.

Wash warm on a gentle cycle and dry on low. Bamboo derived rayon loses its softness quickly under high heat and harsh detergent, and the surface feel is most of what you are paying for here.

Skip fabric softener entirely. It coats the fibres, kills the moisture wicking that makes this cover work, and does nothing useful for a surface that is already soft.

Four Seasons Essentials makes the plainest cover on this list, and that is the appeal. A white shell, a waterproof barrier, a zipper that closes around all six sides, and nothing else to go wrong. For a rental unit or a spare bed that has to be protected but not pampered, that is the whole requirement.

Because the shell is thin it is light in the hands, easy to fit without help on a twin or full, and quick through a wash cycle. There is no quilted layer, no brushed nap, and nothing that changes the surface feel of the mattress underneath, for better or worse.

The limits follow from the same simplicity. There is no cushioning, so an old or lumpy mattress feels exactly as it did before. The zipper is basic hardware, and like every budget encasement it wants to be run slowly around the corners rather than yanked. Depth tolerance is standard profile, so measure before you order.

Bottom line: a no frills six sided encasement that does the essential job, best suited to rentals, spare rooms and beds you are protecting rather than upgrading.

• Type: six sided zippered encasement
• Shell: lightweight poly knit, white
• Barrier: waterproof layer
• Finish: hypoallergenic surface
• Depth: standard profile
• Care: machine washable

Pick this when you need several covers for beds that are protected rather than enjoyed: rentals, spare rooms, a house being prepared for guests.

Confirm the size and depth on the listing, since the cut is standard profile.

Slide it on from the foot of the bed, square the corners, and zip slowly, easing the pull around each corner rather than forcing it.

Wash before first use so the shell relaxes and sits flatter.

Guardmax sits between the budget encasements and the premium terry covers. The shell is a soft brushed knit that feels like bedding rather than a barrier, and it closes fully around the mattress with a zipper, so you get the real six sided seal rather than a fitted skirt.

The face is where the money went. It is soft enough that you would not identify it as a waterproof cover by touch, and breathable enough that heat buildup stays modest, which is the usual complaint about sealed covers on foam beds. Behind it the barrier does the standard job against spills and sweat.

Two things to keep in mind. A brushed surface attracts lint and will pill in the spots that see the most friction, particularly under a restless sleeper. And this is a standard depth cut, so a tall hybrid needs a deeper cover. Zip gently around the corners, as with any cover in this price band, because the hardware is competent rather than heavy duty.

Bottom line: the pick for people who want a soft, fabric like feel and still insist on total enclosure.

• Type: six sided zippered encasement
• Shell: soft brushed knit
• Barrier: waterproof layer
• Depth: standard profile
• Closure: perimeter zipper
• Care: machine wash warm, tumble dry low

Choose this if the deciding factor is feel. It is the softest shell here short of the terry faced option, and it costs less than the premium covers.

Confirm your mattress sits in the standard depth range before ordering.

Fit from the foot of the bed, square the corners, then zip. Put the fitted sheet over it and leave the cover in place between changes.

Wash it two to four times a year rather than monthly to limit pilling on the brushed face.

This is the SafeRest most people already own, and it is worth being precise about what it is. It is a fitted protector, not an encasement. It pulls on like a fitted sheet, covers the top of the mattress and the sides, and leaves the underside open. There is no zipper to close, which is exactly why it is so popular and exactly why it is the weakest allergen barrier here.

Within those limits it is well made. The cotton terry face is soft and feels like a mattress pad rather than a plastic sheet, the waterproof backing covers the whole sleeping surface, and the stretch pockets hold on modern deep mattresses without popping off in the night. As protection against sweat, spills, and everyday grime it does everything you would want.

For allergies the honest assessment is that it is a partial measure. It puts a barrier between you and the top surface, which is where you are in contact, and that is genuinely worth something. It does not seal the mattress, so allergen already inside can still move through the open underside and the exposed seams over time. If the mattress is new, this cover keeps it clean from the start and that is a reasonable strategy. If the mattress is ten years old and you are reacting to it, an encasement is the right answer.

Bottom line: the easiest cover to live with and a sensible choice for a new mattress or a bed you cannot lift, but choose a zippered encasement if allergen control is the actual goal.

• Type: fitted mattress protector, no zipper
• Surface: cotton terry blend
• Barrier: waterproof backing over the sleeping surface
• Coverage: top and sides, underside open
• Size shown: Queen, full size range available
• Fit: stretch pockets for deep mattresses
• Care: machine wash, tumble dry

Best suited to a new or recently bought mattress, where the goal is to keep allergen and moisture out from day one rather than to shut in a reservoir that has already built up. It also suits anyone who physically cannot lift a mattress to fit an encasement, which is a real constraint on a heavy hybrid in a small bedroom.

If you have an older mattress and a diagnosed dust mite allergy, this is not the product that addresses it. Move up to one of the zippered encasements on this list and keep a fitted protector for the guest room.

Fit it directly on the bare mattress with a fitted sheet over the top, not the other way round. It is a protector, not a sheet, and it lasts far longer when it is not in direct contact with skin every night.

Because it sits closer to you than an encasement does, it needs washing more often than a sealed barrier: roughly once a month, or straight away after any spill. Warm water and a low dryer setting protect the waterproof backing.