Finding the best small single mattress cover starts with measuring your mattress, since “small single” can refer to different sizes. The options below cover two distinct needs: a padded zippered cover for a 72-by-24-inch topper, and waterproof fitted protectors for a 30-by-75-inch narrow twin mattress. Check your mattress’s length, width, and depth before choosing; these covers are not interchangeable.
Quick Comparison
| Product | Size and style | Best for | Key feature |
|---|---|---|---|
| Jamdok 72 x 24-Inch Zippered Topper Cover | 72 x 24 inches; zippered cover | A 3-inch foam or latex topper | Fluffy filling on both sides |
| Kingnex Bamboo Viscose RV Bunk Protector | 30 x 75 inches; fitted style, up to 14 inches deep | A narrow twin or RV bunk mattress | Waterproof backing and bamboo viscose jersey surface |
| Kingnex Polyester RV Bunk Protector | 30 x 75 inches; fitted style, up to 14 inches deep | A narrow twin mattress needing a low-profile barrier | Waterproof backing and smooth knitted surface |
Our Picks: Best Small Single Mattress Cover reviews
Jamdok Zippered Cover for a 72 x 24-Inch Topper
The Jamdok is a padded, zippered cover made for a 72-by-24-inch foam or latex topper that is 3 inches thick. It is sold as a cover only, so you will need to supply the foam or latex insert separately. Its dimensions make it a different fit from the 30-by-75-inch narrow twin protectors in this list.
The top and bottom layers are filled with 1000 GSM of fluffy fiber. This gives the cover a softer, more cushioned feel than a thin waterproof protector. The product description says the covered topper can measure about 4 inches thick once assembled, so allow for that added height when checking the space available on your bed or cot.
Three side zippers are intended to make it easier to put the cover around the insert. The cover is machine washable, and the product description recommends dryer drying to help restore its fluffiness. It can also be folded for use as a temporary pillow or used as a thin blanket, although its main purpose is to cover a compatible topper.
This is the most suitable option here if you specifically need a padded cover for a 72-by-24-inch topper. Its filling may be a drawback if you want a slim, waterproof barrier or need to protect a 30-by-75-inch mattress. Be sure to confirm both the insert dimensions and thickness before ordering.
Pros:
- Designed for a specific 72 x 24-inch, 3-inch topper.
- Filled on both sides for a cushioned feel.
- Three side zippers help with fitting the cover over an insert.
- Machine washable, according to the product description.
Cons:
- The foam or latex insert is not included.
- It is not a waterproof protector, and its dimensions do not match a 30 x 75-inch narrow twin.
Verdict: Choose the Jamdok if you have a 72-by-24-inch, 3-inch topper and want a padded cover; skip it if you need a waterproof mattress protector or a narrow twin fit.
Kingnex Bamboo Viscose Waterproof RV Bunk Protector
This Kingnex protector is a fitted-sheet-style cover for a 30-by-75-inch narrow twin mattress, a size often used for RV bunks. Its stretchable deep pocket is designed for mattresses up to 14 inches deep. Measure your mattress before buying, especially if it has a thick topper or an unusual shape.
A TPU membrane on the reverse side of the top layer is intended to repel liquids. The sleep surface is made from bamboo viscose jersey, which the product description characterizes as soft, breathable, and moisture-wicking. The protector is thin and has no padding or quilting, so it is intended to preserve the mattress’s original feel rather than add cushioning.
The fitted design is described as staying in place on an adjustable bed as it moves. It is machine washable in cold water and can be tumble dried on low heat. Compared with the other Kingnex option below, the main stated difference is the bamboo viscose jersey surface; both are waterproof fitted protectors for the same mattress size and depth range.
This is a practical choice if you want a waterproof layer for a narrow twin and prefer the listed bamboo viscose surface. It will not soften a firm mattress like a padded topper cover, and the supplied information does not specify a zipper or an added cushion layer.
Pros:
- Made for a 30 x 75-inch narrow twin mattress.
- Stretchable pocket fits mattresses up to 14 inches deep.
- TPU backing is designed to repel liquids.
- Thin, unquilted design is intended to retain the mattress’s original feel.
Cons:
- Does not add padding or change the mattress’s firmness.
- Its dimensions are not suitable for the 72 x 24-inch topper listed above.
Verdict: Pick this Kingnex model if your mattress measures 30 by 75 inches and you want a waterproof, low-profile protector with a bamboo viscose jersey surface.
Kingnex Smooth-Knit Waterproof Narrow Twin Protector
This Kingnex protector is also designed for a 30-by-75-inch narrow twin or RV bunk mattress. Its fitted-sheet style has a stretch skirt and elastic band to pull the corners snugly. The stated depth limit is 14 inches, making mattress depth an important part of the fit check.
The protector has a TPU backing intended to block perspiration, urine, liquids, and stains. Its smooth knitted polyester surface is described as soft and quiet, with a low-profile design meant to be an unobtrusive barrier. Like the other Kingnex option, it has no padding or quilting, so it protects rather than adds loft or cushioning.
Care is straightforward: the product description says it can be machine washed and tumble dried on low. Compared with the bamboo viscose Kingnex model, this one uses a knitted polyester surface instead. The listed size and maximum mattress depth are the same, so the choice comes down mainly to the stated surface material and your fit requirements.
Consider this protector for a narrow twin mattress when you want a waterproof layer and a smooth, fitted design. It is not a padded cover, and it will not fit the smaller 72-by-24-inch topper intended for the Jamdok cover.
Pros:
- Designed for a 30 x 75-inch narrow twin mattress.
- Stretch skirt and elastic band help secure the fitted style.
- TPU backing is intended to block liquids and stains.
- Machine washable and suitable for low-heat tumble drying.
Cons:
- Offers no padding or quilting.
- Fits mattresses up to 14 inches deep, so deeper mattresses need another option.
Verdict: Choose this model if you need a waterproof fitted protector for a 30-by-75-inch narrow twin and prefer its smooth knitted polyester surface.
How to Choose a Small Single Mattress Cover
Measure the mattress, not just the bed frame
Small single is not a consistent size across all beds and products. Measure the mattress from edge to edge, then compare its length and width with the cover’s listed dimensions. The options here serve two different sizes: 72 by 24 inches for the Jamdok topper cover and 30 by 75 inches for the Kingnex protectors. A similar-sounding bed name does not guarantee a fit.
Check mattress depth and cover style
A fitted protector must stretch over the mattress and stay secure at the corners. Both Kingnex protectors are listed for mattresses up to 14 inches deep. The Jamdok uses three side zippers and is made for a 3-inch insert. Check the full mattress depth, including any topper, and compare it with the product’s stated limits before choosing.
Decide whether you need protection or extra cushioning
A waterproof protector is meant to create a barrier, not make the bed softer. The Kingnex options have no padding or quilting. The Jamdok has filling on both sides, so it adds a cushioned layer, but it is not described as waterproof. Choose based on whether your priority is liquid protection or a softer topper cover.
Look at the surface material
The two narrow twin protectors differ in their listed top fabrics. One uses bamboo viscose jersey, while the other has a smooth knitted polyester surface. If you are choosing between them, consider which description better suits your preference. Neither product is described as quilted or padded.
Consider washing and drying instructions
All three products are described as machine washable. The bamboo viscose Kingnex protector specifies cold water and low-heat tumble drying; the other Kingnex model specifies low-heat tumble drying. The Jamdok description says dryer drying can help restore fluffiness. Follow the care instructions for the specific cover you choose.
Confirm what is included
The Jamdok is explicitly a cover only and does not include its foam or latex insert. The Kingnex products are fitted mattress protectors rather than complete mattresses. Read the product details carefully so you know whether you are buying a cover, a protector, or a mattress component.
Frequently Asked Questions
Is the Jamdok cover a complete mattress topper?
No. It is the cover only. The foam or latex insert is not included.
Will the 30 x 75-inch Kingnex protectors fit a 72 x 24-inch mattress?
They are listed for 30-by-75-inch narrow twin mattresses, so they are not the right listed size for a 72-by-24-inch mattress. Match the cover dimensions to your mattress measurements.
Are the Kingnex protectors padded?
No. Both are described as thin covers without padding or quilting. Their purpose is to protect the mattress while preserving its original feel.
Which products are described as waterproof?
Both Kingnex protectors have TPU backing described as waterproof. The Jamdok is a padded topper cover, and its product description does not state that it is waterproof.
What is the difference between the two Kingnex protectors?
Both are fitted protectors for 30-by-75-inch narrow twin mattresses, with a stated maximum depth of 14 inches. One has a bamboo viscose jersey surface; the other uses smooth knitted polyester.
Can I machine wash these covers?
Each product description says the cover is machine washable. The Kingnex bamboo viscose protector specifies cold water and low-heat tumble drying, while both Kingnex options specify low-heat drying. Check the care instructions for your chosen model.
Final Recommendation
Choose the Jamdok if you need a padded zippered cover for a 72-by-24-inch, 3-inch topper and already have the insert. For a 30-by-75-inch narrow twin mattress that needs a waterproof layer, compare the two Kingnex protectors by surface material: bamboo viscose jersey or knitted polyester. Measure your mattress, including its depth, before ordering to avoid choosing a cover that does not fit.