Buying Bed Bug Covers for Mattresses

Bed bugs hide in seams, folds and gaps, so a mattress cover only helps if it leaves them nowhere to go. Most bed bug covers for mattresses look alike on a product page. The differences that matter sit in the construction: how the cover closes, what it is made of and whether it fits your mattress’s depth.

This guide gives you a short checklist to work through before you buy. It stays calm and factual, because choosing a cover is a practical decision, not an emergency.

How to Choose a Bed Bug Mattress Cover: Enclosure, Zipper and Fabric

A bed bug proof mattress cover works only when it encloses the whole mattress with no gaps. It blocks access rather than killing bugs, so any opening defeats the purpose.

Three tests tell you whether a cover earns the label: a full six-sided enclosure, bite-proof fabric with strong seams, and an escape-proof zipper. The best bed bug mattress cover is the one that passes all three.

Full Six-Sided Enclosure, Not a Partial Cover

A fitted-style protector covers the top and sides and leaves the underside open. Bugs can reach the bottom of the mattress and the seams along it. A true encasement wraps all six sides, which means the top, the bottom and the four sides, then closes with a zipper.

A fitted-style protector is a good choice for spills, but it is not built to seal out bed bugs.

SureGuard Mattress Encasements are described as 360-degree premium protection against liquids, stains, allergens and bed bugs. They are also described as ideal for households with pets or children. That wording matches the design you want: a sealed enclosure, not a sheet that tucks around the corners.

Bite-Proof Fabric and an Escape-Proof Zipper

Fabric and zipper are where a cover most often fails, because both take daily wear. Look for a tightly woven fabric that bugs cannot bite through, and seams that are stitched or bound so they do not gap or fray.

The zipper deserves the closest look. It should close all the way around without gaps, and it should have a flap or seal over the teeth so nothing slips through the track. If you can see daylight along the closed zipper, a bug can find its way through.

Check the zipper the moment the cover arrives. Close it fully, run your fingers along the track and look at the corners, where the zipper turns and gaps are most likely. For a closer look at this part of the design, read what to check in a zippered mattress cover.

Mattress Depth Sizes: Matching the Encasement to Your Bed

Depth decides fit for any bed bug mattress encasement. A cover chosen by bed width alone can leave gaps, bunch up or refuse to close, and any of those defeats the seal. Depth bands run from roughly 6-8 inches up to 17-20 inches, and SureGuard Mattress Encasements come in four depth ranges across all sizes.

Measure the Full Height Before You Shop

Measure from the base of the mattress to the highest point of the top layer. Include any pillow top, quilted topper layer or built-in cushioning, because the cover has to wrap everything you sleep on. Use a rigid tape measure, and take the reading at the side of the bed with the mattress as it normally sits.

A mattress that measures 12.5 inches belongs in the next band up, not the one below. A cover that is too shallow strains at the zipper. One that is far too deep leaves loose fabric where bugs can shelter and the cover can snag.

Measure the bed itself, not the label on the box it came in. Labels often list a nominal thickness, and pillow tops and settling change the real figure over the years.

Queen Bed Bug Covers: Size and Depth Are Separate Choices

“Queen” tells you width and length only. It says nothing about depth, so a queen bed bug cover needs two decisions: the size and the depth band.

Take two queen mattresses. One is a slim 10-inch model, and the other is a 14-inch hybrid with a pillow top. Both are queens, yet they need different covers. The slim one fits the Queen (9-12 in. Deep) SureGuard Mattress Encasement, which costs around $64.97. The thicker one fits the Queen (13-16 in. Deep) SureGuard Mattress Encasement, also around $64.97. Both are described as 360-degree premium protection against liquids, stains, allergens and bed bugs.

If your measurement lands near the edge of a band, read the product page before you order. For more on separating width from depth, see queen sizing for zippered covers.

Bed Bug Encasement for the Box Spring, Not Just the Mattress

The box spring sits directly beneath the mattress, and it is another hiding place within reach of where people sleep. UF/IFAS notes that bed bugs tend to shelter close to the bed, in mattress seams, box springs and bed frames.

A mattress-only cover therefore leaves part of the bed open. Bugs living in the box spring can climb back onto a sealed mattress. You get the full benefit only when both pieces are enclosed.

A box spring has its own advantage: it is easy to cover. Its exposed fabric, staples and corner joints are all spots a bug can use, and a zippered encasement closes every one of them. If you want the foundation side in more detail, see our full box spring encasement guide.

Matching Box Spring Sizes, Including Split Sets

SureGuard box spring encasements are described as 360-degree premium protection against liquids, stains, allergens and bed bugs. These are the options:

• Queen Size SureGuard Box Spring Encasement, around $64.97
• Full Size SureGuard Box Spring Encasement, around $57.97
• Full XL SureGuard Box Spring Encasement, around $59.97
• Split King SureGuard Box Spring Encasement Pack, around $74.97
• Split Cal King SureGuard Box Spring Encasement Pack, around $74.97

The first three are single covers for a single box spring. The split sizes are sold as packs, because a split king or split Cal King bed uses two box springs and each needs its own cover.

Count the box springs under your bed before you order. If you see two foundations side by side, you need a pack, not a single cover.

Certifications and the 10-Year Warranty as Trust Signals

SureGuard’s flagship product is a 100% waterproof, hypoallergenic mattress protector with a pure cotton top surface. That protector carries GREENGUARD Gold certification and a 10-year warranty. These credentials belong to the protector, so check an encasement’s own product page for its details.

GREENGUARD Gold is an independent certification for low chemical emissions. A third party tests the product, which matters if you are putting a cover against your skin for eight hours a night, and especially if children sleep in the bed. The 10-year warranty is SureGuard’s commitment to stand behind that product over the long run.

Customers also weigh in. Across all SureGuard products, the average rating on Amazon.com is 4.6 out of 5 stars, from over 59,000 reviews and ratings.

These signals support the construction tests above. They do not replace them. A certification tells you about emissions, not whether a zipper seals, so judge the enclosure, fabric and zipper first and treat credentials as the second layer of confidence.

Whether a Mattress Cover Stops Bed Bugs

Yes, with limits. A sealed encasement blocks new bugs from reaching the mattress and traps any bugs already inside. It does not kill bugs elsewhere in the room, and it does not replace inspection and treatment. You can read more on whether a mattress encasement really works against bed bugs.

What the Cover Does for an Infestation, and What It Does Not

Bed bug control is a sequence of steps, not a single product. University of Nebraska Extension guidance lays it out that way, with the encasement as one step inside a broader routine.

Here is what a sealed cover does:

• It keeps bugs from settling into the mattress seams.
• It traps bugs already inside, so they cannot reach you.
• It gives you a smooth surface where bugs are easier to spot.

Here is what it does not do. It does not remove bugs from the bed frame, the baseboards or the curtains. If the seal fails, through a torn seam or a zipper left partly open, bugs can still get in. So yes, bugs can still show up in a room with an encasement on the bed, just not inside the mattress.

If you suspect an active infestation, an encasement is not a treatment. Call a licensed pest professional and use the cover alongside their plan.

How Long to Keep the Encasement On

Keep it on well past the last sign of bugs. Bed bugs can survive long stretches without a meal, as the University of Sydney’s medical entomology page describes, so a trapped bug may outlast a few weeks of waiting.

That makes the encasement a long-term measure, not a short-term fix. No fixed number of weeks is safe to promise.

Pair the cover with regular inspection. Every few weeks, check the zipper, the seams and the bed frame for live bugs, shed skins or small dark spots. A clean check is the best sign you can take the next step with confidence.

Bed Bug Protection When Traveling or Renting Out a Property

Bed bugs travel by hitchhiking on bags and clothes. That makes travel and rentals the two situations where a sealed bed matters most, and neither calls for alarm.

A sealed encasement protects your home bed if bugs arrive in luggage. The bugs have nowhere to settle in the mattress, even if one reaches the bedroom.

You cannot encase a hotel bed. While you are away, inspect the room before you unpack. Check the mattress seams and headboard, keep luggage off the bed and floor, and use the luggage rack if there is one.

For a furnished rental, the cover is one layer for beds you control. It does not protect furniture, walls or the next guest’s belongings. Pair it with an inspection between stays so a problem is caught while it is still small.

Protecting the Home Bed After a Trip

When you get home, keep your bags off the bedroom floor and away from the bed. Unpack in a hard-floored room such as a laundry room or garage, and wash clothes before they go into drawers.

Then give the bed a quick look. Check the zipper line and the seams of your encasement for any sign of bugs. If the cover is sealed and intact, your mattress stays protected even if a stray bug came home with you.

Caring for Your Encasement

A cover only works while it is intact, so build a small routine. Check the zipper and seams on a set schedule, such as each time you change the sheets. Look for pulled threads, small holes and a zipper that no longer closes cleanly.

If a cover tears, repair or replace it promptly. A small hole is still an opening. When you clean the cover, follow the care label, since heat and detergent suitability differ between fabrics.

Ready to put the checklist to use? Measure your mattress from base to highest point, and measure your box spring too. Then review the matching SureGuard mattress and box spring encasements on their product pages, and compare your numbers with each depth band and size. Rest Assured with SureGuard.

Frequently asked questions

What type of mattress cover is best for bed bugs?

Choose a full encasement that wraps all six sides of the mattress and closes with a zipper, not a fitted-style protector. It should use tightly woven fabric with strong seams and a zipper with a flap or seal. Match it to your mattress’s depth so it closes without strain.

What is the best anti-bed bug cover for a mattress?

The best one passes three tests: a full six-sided enclosure, bite-proof fabric and an escape-proof zipper. It also fits your measured depth. SureGuard Mattress Encasements are described as 360-degree protection against liquids, stains, allergens and bed bugs, and each product page lists the depth range.

What kills bed bugs on a mattress?

A cover does not kill bugs. It blocks new ones and traps those already inside. Killing an infestation takes treatment, usually carried out by a licensed pest professional, with the encasement running alongside as one layer of the plan.

Can I still get bed bugs with a mattress cover?

Bugs can still reach the room, the bed frame and other furniture, even with a cover in place. They should not be able to settle in a sealed, intact mattress. A torn seam or partly open zipper breaks that seal, so inspect the cover regularly.