A zippered double mattress cover—often listed as a full-size encasement in the US—wraps around the mattress instead of covering only its top. It can help shield all sides from spills, dust, and other contaminants. The key is finding a cover that matches your mattress’s length, width, and depth. These five options fit a standard 54-by-75-inch full mattress, but their depth ranges and materials differ.
Quick Comparison
| Product | Mattress depth | Notable features | Best suited for |
|---|---|---|---|
| Utopia Bedding Full Size Zippered Mattress Protector | Up to 13 inches | Waterproof, six-sided coverage | Everyday spill protection |
| SureGuard Full Zippered Mattress Protector | 13–16 inches | Cotton terry top, waterproof, sealed zipper | Deeper mattresses |
| Guardmax Full Mattress Protector | 12 inches; stretches to 13 | Waterproof, six-sided encasement | Shoppers seeking a soft, quiet cover |
| Mattressentials Zippered Full Mattress Protector | 11–13 inches | Waterproof, six-sided zipper closure | All-around mattress coverage |
| Ptsuker Full Size Zippered Mattress Protector | Several depth options | Terry surface, waterproof liner, sealed zipper | Those wanting to choose a specific depth |
Our Picks: Best Double Mattress Cover With Zip reviews
1. Utopia Bedding: A Practical Waterproof Encasement for Everyday Protection
This full-size cover encases the mattress on all sides and is designed for a mattress up to 13 inches deep. A wraparound zipper closes the cover around the mattress, while stretchy knitted polyester helps it sit in place.
A waterproof layer is intended to block everyday liquids such as spills and sweat. The fabric is described as soft and non-crinkling, which may be a welcome alternative to stiff-feeling protectors. It can be machine washed and tumble dried on low heat.
This is a straightforward choice for a standard-depth full mattress in a home where routine spill protection matters. It offers a useful mix of coverage and easy care, though shoppers with mattresses deeper than 13 inches should look at the SureGuard option instead. As with any zippered cover, checking the mattress measurements before ordering can help avoid a difficult fit.
Pros:
- Fully encases a full mattress up to 13 inches deep
- Waterproof barrier helps guard against spills and sweat
- Knitted polyester is designed to feel soft and stay quiet
- Machine washable and suitable for low-heat tumble drying
Cons:
- Not specified for mattresses deeper than 13 inches
- Polyester construction may not suit shoppers looking for a cotton surface
Verdict: Choose the Utopia Bedding cover if your full mattress is no more than 13 inches deep and you want a simple, washable waterproof encasement.
2. SureGuard: A Cotton-Terry Encasement for Deeper Mattresses
SureGuard’s full-size encasement is made for mattresses measuring 13 to 16 inches deep, making it the deepest-fitting option in this group. It covers all six sides and combines a waterproof barrier with a cotton terry top that is designed to wick moisture while retaining the feel of the mattress.
The zipper uses Invisi-Zip and SureSeal features to close off the mattress, and the product is described as bed bug proof. It is also intended to block dust, dirt, and dander. The manufacturer states that the cover is free from vinyl, PVC, phthalates, and fire retardants, and that it is independently lab tested and GREENGUARD Gold certified.
This cover makes the most sense if your mattress is too deep for the other choices or if you prefer a cotton terry surface. The supplied product information recommends adding a fitted SureGuard protector over the encasement for frequent accidents and easier cleanup. It also recommends a SureGuard box spring encasement for protection of the box spring, which is separate from covering the mattress.
Pros:
- Fits full mattresses from 13 to 16 inches deep
- Waterproof, six-sided coverage with a sealed zipper design
- Cotton terry top is designed to wick moisture and feel quiet
- Machine washable and dryable; comes with a stated 10-year quality guarantee
Cons:
- May be too roomy for mattresses shallower than 13 inches
- For frequent accidents, the manufacturer suggests adding a separate fitted protector
Verdict: The SureGuard is the strongest fit here for a deeper full mattress, especially if you want a cotton terry surface and a fully enclosed design.
3. Guardmax: A Soft, Quiet Cover with a Guarded Zipper
Guardmax is a six-sided encasement for a full mattress measuring 54 by 75 inches. It is listed for a 12-inch depth and can stretch to fit up to 13 inches. Its knitted polyester face is described as soft and quiet, with a waterproof layer beneath the knit to help keep spills, sweat, and wet-night accidents away from the mattress.
The zipper runs around three sides and tucks under a stitched guard flap. That design aims to close the opening around the zipper pull as well as the rest of the mattress. The product is also described as a dust mite allergen barrier, and its fabric is OEKO-TEX Standard 100 certified.
Guardmax stands out for shoppers who want a quieter, jersey-knit feel and a guarded zipper design. It can be washed in warm water and tumble dried on low, according to the product information. The main fit limitation is its narrower depth range: it is not the best choice for a mattress shallower than 12 inches or deeper than 13 inches.
Pros:
- Waterproof coverage on all six sides
- Soft, quiet knitted face rather than a plastic-feeling surface
- Zipper closes beneath a stitched guard flap
- Warm-wash and low-heat tumble-dry care
Cons:
- Designed for a narrower 12-to-13-inch depth range
- Shoppers who prefer cotton terry may want to consider SureGuard or Ptsuker
Verdict: Pick Guardmax if your mattress is about 12 or 13 inches deep and a soft, quiet knit with a guarded zipper is a priority.
4. Mattressentials: A Noiseless, Six-Sided Cover with a Velcro Zipper Seal
This Mattressentials encasement is designed to fit a full mattress from 11 to 13 inches deep. It covers all sides, with a zipper that wraps around three sides and a Velcro seal intended to close the zipper opening. The cover is described as waterproof and as a barrier against allergens and dust.
The stretchy, breathable fabric is designed to be soft and noiseless rather than crinkly beneath sheets. Its three-sided opening may make it easier to place over a mattress than an enclosure that requires sliding the whole mattress into a tight sleeve, though handling a full-size mattress can still take some effort.
Compared with the other picks, Mattressentials offers a useful middle depth range that covers both 11- and 13-inch mattresses. The product details do not specify a material blend or particular washing instructions, so check the current care information before laundering. Those who want a cotton terry surface or a stated machine-care method may prefer another option in this list.
Pros:
- Fits full mattresses from 11 to 13 inches deep
- Waterproof, six-sided encasement
- Velcro seal is designed to secure the zipper closure
- Stretchy, breathable fabric is described as soft and quiet
Cons:
- Specific fabric composition and care instructions are not provided in the supplied details
- Not intended for mattresses shallower than 11 inches or deeper than 13 inches
Verdict: Mattressentials is a sensible option if your full mattress is 11 to 13 inches deep and you want a waterproof, quiet encasement with a zipper seal.
5. Ptsuker: A Terry-Top Encasement with Multiple Depth Choices
Ptsuker’s zippered protector is offered for several mattress sizes and depths. The product details list full-size dimensions of 54 by 75 inches and depth choices that include 9, 12, 15, and 18 inches. The title also refers to 10-, 11-, and 12-inch options, so check the size and depth selector carefully before ordering to confirm the exact version available.
The cover combines a terry surface with a waterproof TPU membrane intended to block liquids and moisture. Its three-sided sealed micro zipper is designed to wrap the mattress on all sides, while the terry-and-fiber surface is described as breathable and quiet. The listed composition is 80% terry cloth cotton and 20% ultra-fine fibers for the surface.
Its range of listed depths may help if your mattress does not match the more limited fits of the other covers. The tradeoff is that you need to select the correct variation; choosing by the product title alone may not be enough given the different depth information in the supplied listing. Confirm that the selected option is full size and matches your mattress measurements.
Pros:
- Full-size option is listed at 54 by 75 inches
- Multiple depth choices are listed, including 9, 12, 15, and 18 inches
- Terry surface and waterproof liner are designed for comfort and liquid protection
- Three-sided sealed zipper and quiet-sleep design
Cons:
- Depth information differs between the product title and description, so verify the selected size carefully
- Multiple size variations can make it easier to select the wrong fit
Verdict: Consider Ptsuker if you need a specific depth option and are willing to double-check the selected full-size variation before buying.
How to Choose a Double Mattress Cover with a Zip
Measure the mattress, including its depth
In the US, double and full commonly refer to a mattress measuring 54 by 75 inches, but mattress depth can vary. Measure the width and length as well as the height from the bottom seam to the top surface. If you use a mattress topper, include it in the depth measurement if it will stay beneath the encasement. A cover that is too shallow may be difficult to close, while one that is too deep may not fit snugly.
Match the depth range to your mattress
Compare your measurement with the product’s stated fit, not just the word “full” in the title. Utopia Bedding fits up to 13 inches; SureGuard is made for 13 to 16 inches; Guardmax is listed for 12 inches and stretches to 13; and Mattressentials fits 11 to 13 inches. Ptsuker lists several depth options, so check the exact variation before placing an order.
Decide what kind of protection you need
All five products are described as waterproof and designed to encase the mattress. Some also describe features intended to block bed bugs, dust mites, allergens, or dirt. If your main concern is bed bugs, pay close attention to how the zipper closes and follow the product’s instructions. An encasement should not be treated as a substitute for addressing an existing pest problem.
Consider the surface material and sound
The surface is what you feel beneath your sheets. SureGuard and Ptsuker describe cotton-rich terry surfaces, while Utopia Bedding and Guardmax use knitted polyester. Mattressentials describes its fabric as stretchy and breathable but does not specify its composition in the supplied details. If you are sensitive to rustling, look for a cover described as quiet or non-crinkling.
Check how the zipper closes
A zippered cover needs to close fully around the mattress. Designs in this group include wraparound closures, zipper guards, and a Velcro seal. A guarded or sealed zipper may help close off the opening, but careful installation still matters. Follow the supplied directions and check that no fabric is caught in the zipper.
Review washing and drying instructions
Waterproof encasements need care that protects both the fabric and the barrier. Utopia Bedding and SureGuard are described as machine washable and dryable, and Guardmax lists warm washing and low-heat tumble drying. Check the label or current product instructions for the selected model before laundering, especially when the listing does not provide specific care details.
Frequently Asked Questions
Is a double mattress cover the same as a full mattress cover?
In US bedding, “double” is commonly used for a full mattress. The products in this guide are listed for a 54-by-75-inch full mattress. Still, measure your mattress before ordering, since size labels alone do not confirm its depth.
Will a zippered mattress cover fit over a mattress topper?
It may, if the combined depth of the mattress and topper falls within the cover’s stated fit range. Measure both together if the topper will remain in place, and check that the zipper can close without straining.
Does a waterproof mattress encasement protect all sides?
These products are described as six-sided encasements, which means they are designed to cover the top, bottom, and sides. Follow the installation instructions and make sure the zipper is fully closed for the intended coverage.
Can a zippered mattress cover help with bed bugs?
Some of these products are described as bed bug proof or designed to seal the mattress with a zipper. A cover can be part of a prevention or treatment plan, but it does not replace professional guidance for an active infestation. Follow the manufacturer’s directions for installation and use.
Can I put sheets directly over the encasement?
Yes. These covers are designed to encase the mattress beneath your bedding. You can put your usual sheets over the cover, as long as they fit the mattress and any added layers.
How do I know which cover is right for my mattress depth?
Measure the mattress from its base to its highest point, including any topper that will remain underneath the cover. Then compare the measurement with the listed depth range. For Ptsuker, confirm the exact depth selected in the listing because several options are described.
Final Recommendation
For a standard-depth full mattress, Utopia Bedding is a straightforward pick for waterproof coverage and simple machine care. Choose SureGuard if your mattress is deeper, or Guardmax if you want a soft, quiet knit and your mattress is around 12 to 13 inches deep. Mattressentials offers a middle-range fit, while Ptsuker may suit shoppers who need a different listed depth. Measure first, then choose the cover whose depth range matches your mattress.