Choosing a fitted sheet for a memory foam mattress starts with the mattress’s full depth—not just its size. A thick topper can add height, so a sheet that once fit may start slipping off. The products below are mattress toppers and pads, not fitted sheets, but each has a deep-pocket design that may help refresh a bed or add a comfort layer. Check your mattress and topper measurements before choosing: the pocket depth listed for each option is not the same as a fitted sheet’s pocket depth.
Quick Comparison
| Product | Size | Fit details | Best for |
|---|---|---|---|
| Niagara Sleep Solution Ultra Soft Topper | Queen | Fits mattresses 8–20 inches deep | Adding a soft, washable layer |
| BEDLORE Thick Soft Pillow Top Topper | Queen | Stretchable pockets fit 6–18 inches | Extra-plush comfort |
| BEDLORE Thick Soft Pillow Top Topper | King | Stretchable pockets fit 6–18 inches | Adding plush comfort to a king bed |
| Niagara Sleep Solution Cotton Top Mattress Pad | Queen | Fits mattresses 8–20 inches deep | A cotton-top layer with a deep pocket |
| Niagara Sleep Solution Ultra Soft Topper | Full | Fits mattresses 8–20 inches deep | A soft layer for a full-size bed |
Our Picks: Best Fitted Sheet For Memory Foam Mattress reviews
1. Niagara Sleep Solution Queen Topper: A Soft Layer With Deep Pockets
This queen-size topper is made with a top fabric of polyester and rayon derived from bamboo fiber. Its deep-pocket skirt is designed for mattresses 8 to 20 inches deep, which gives it a broad fit range for beds with added height. That may be useful if your memory foam mattress is paired with a separate topper or pad.
The padded surface is intended to add softness rather than change the mattress’s support system. It is machine-washable, and the manufacturer recommends allowing the compressed topper time to expand after unpacking. Some owners describe it as a comfortable way to make an older or firm-feeling bed plusher, while others appreciate that the stretchy sides help keep it in place.
Keep in mind that a topper is not a fitted sheet or a waterproof protector. Adding it also increases the total height your fitted sheet must cover. Measure the mattress and topper together before choosing sheets, even though this topper itself has a deep skirt.
Pros:
- Fits mattresses listed from 8 to 20 inches deep
- Soft top fabric includes rayon derived from bamboo
- Machine-washable design
- Queen size measures 60 by 80 inches
Cons:
- It adds cushioning but does not replace a fitted sheet
- Needs time to recover after being compressed for shipping
Verdict: Choose this queen topper if you want a washable, plush comfort layer and your mattress falls within its stated depth range.
2. BEDLORE Queen Pillow Top Topper: A Plush Option With Stretchable Pockets
The BEDLORE queen topper combines a quilted pillow-top design with a fabric blend of rayon made from bamboo and polyester. Its elasticized skirt is listed to fit mattresses 6 to 18 inches deep. Compared with the Niagara options in this list, it starts at a shallower mattress depth, which may make it a better match for some lower-profile beds.
The topper is machine-washable and designed to add a soft layer over the mattress. Some owners find that it changes the feel of a firm bed and appreciate the stretchy skirt when putting it on. However, the fill is polyester, so shoppers looking for a thick layer of memory foam or a specific support adjustment should note that this is a pillow-top style topper, not a foam slab.
Its dark gray color may suit shoppers who prefer a darker bed layer, though the topper will normally sit beneath a fitted sheet. If you use this on a memory foam mattress, make sure the topper’s combined height still works with your sheets.
Pros:
- Stretchable pocket fit is listed for 6–18-inch mattresses
- Quilted pillow-top design adds softness
- Machine-washable for easier care
- Available in queen size
Cons:
- Not a fitted sheet or a memory foam topper
- Its stated upper fit limit is lower than the Niagara toppers’
Verdict: This is a sensible pick if you want a soft queen pillow-top layer and your mattress is no deeper than the listed 18-inch fit limit.
3. BEDLORE King Pillow Top Topper: Soft Coverage for a Larger Bed
This is the king-size version of BEDLORE’s quilted pillow-top topper. It uses a rayon-made-from-bamboo and polyester fabric blend, polyester fill, and an elasticized skirt listed to fit mattresses 6 to 18 inches deep. The main practical difference from the queen model is its size, so double-check that your mattress is king before ordering.
The soft top is intended to make the sleep surface feel plusher. The stretchable pocket design can help secure the topper around the mattress, but it does not tell you whether your fitted sheet will fit over both layers. If your memory foam mattress is already tall, measure the mattress and topper together before shopping for sheets.
For shoppers who want a king-size comfort layer that can be machine-washed, this is the roomier BEDLORE choice. It is less suitable if you need a fitted sheet, a water-resistant barrier, or a topper with a specified memory foam construction.
Pros:
- King-size option for a larger mattress
- Elasticized pocket is listed for 6–18-inch mattress depths
- Quilted, soft pillow-top surface
- Machine-washable care
Cons:
- Does not function as a fitted sheet or waterproof protector
- Not the right choice for mattresses deeper than the listed 18-inch limit
Verdict: Pick this version if you have a king mattress within the stated depth range and want a washable, soft pillow-top layer.
4. Niagara Cotton Top Mattress Pad: A Breathable Queen-Size Layer
This queen mattress pad has a 100% cotton top, with polyester used for the bottom and skirt. Its deep-pocket construction is listed for mattresses 8 to 20 inches deep. The cotton surface and padded feel make it a different option from the rayon-blend Niagara topper above, though both are designed to add a soft layer and fit deeper mattresses.
The pad is machine-washable, and owners often value that it stays in place and keeps its shape after laundering when cared for as directed. The manufacturer suggests low-heat drying or line drying in the supplied product information. It is not water-resistant, so it should not be treated as a spill barrier or mattress protector.
This could suit someone who wants a cotton sleeping surface between a fitted sheet and a memory foam mattress. It may also add some cushioning, but it is a mattress pad rather than a thick foam topper. As with any added layer, check that your fitted sheet can accommodate the combined bed depth.
Pros:
- 100% cotton top fabric
- Deep-pocket fit listed for 8–20-inch mattresses
- Machine-washable design
- Owners note that it can stay in place through normal use
Cons:
- Not water-resistant
- Adds a pad layer, not the support of a foam topper
Verdict: Choose this pad if you prefer a cotton top and want a washable queen layer with a broad stated mattress-depth range.
5. Niagara Full Ultra Soft Topper: Plush Comfort for a Full Mattress
This full-size version of the Niagara ultra-soft topper uses a top fabric made from polyester and rayon derived from bamboo fiber. It measures 54 by 75 inches and is designed for mattresses 8 to 20 inches deep. The main difference from the queen model is the bed size, so confirm your mattress dimensions before ordering.
The padded surface is made to add softness, and the stretchy skirt is intended to help the topper stay in place. It is machine-washable, though the product is shipped compressed and may need time to regain its shape. Some owners find that it adds a noticeable comfort layer without making the bed feel overly squishy; others value the secure fit on their mattress.
As a topper, it sits beneath your fitted sheet and adds to the total mattress height. It may help refresh the feel of a full-size memory foam bed, but it will not correct a poor sheet fit by itself. Measure the full bed with the topper in place when selecting deep-pocket sheets.
Pros:
- Full size measures 54 by 75 inches
- Fits mattresses listed from 8 to 20 inches deep
- Soft, padded surface with rayon derived from bamboo
- Machine-washable construction
Cons:
- Not a fitted sheet or water-resistant cover
- Requires expansion time after unpacking
Verdict: This is a good match for a full-size bed if you want a soft, washable topper and your mattress fits its listed depth range.
How to Choose a Fitted Sheet for a Memory Foam Mattress
Measure the Full Bed Height
Measure from the bottom edge of the mattress to its top surface. If you use a mattress pad or topper, include that layer in the measurement too. This combined depth is what your fitted sheet needs to cover. A topper’s deep pocket refers to its own skirt fit, not the pocket depth of your sheet.
Match the Mattress Size
Check the mattress label or measure its length and width before buying. Full, queen, and king sizes are not interchangeable, and a sheet that is too small may pull off the corners. A sheet that is too large can bunch under you. The product list above includes full, queen, and king toppers, so confirm the size of your bed before choosing one.
Look for a Deep Pocket and Elastic Around the Edges
For a tall memory foam mattress, look for fitted sheets with a pocket depth that meets or exceeds the total bed height. Strong elastic around the sheet’s edge can help it stay in place, especially if you move around during sleep. Product descriptions may use “deep pocket” without giving a clear measurement, so check the stated depth when available.
Consider How a Topper Changes the Fit
A mattress topper can make a bed softer, but it also increases the height your fitted sheet must cover. If a sheet fits your mattress closely now, adding a topper may make it too shallow. Measure again after adding any pad or topper, and consider whether you prefer a snug fit or extra room at the corners.
Choose Fabric for Your Comfort Preferences
Sheet fabric affects how the bed feels against your skin. Cotton, polyester blends, and rayon-derived fabrics have different textures and care needs. The toppers in this list include cotton or rayon-derived bamboo blends, but those fabrics are not the same as a fitted sheet. Choose sheet fabric separately based on your preferred feel and laundry routine.
Check Care Instructions and Protection Needs
Memory foam care instructions can vary, so check the mattress maker’s guidance before washing or drying any layer on the bed. The listed toppers and pads are machine-washable, but their care instructions differ. None of these products is described as water-resistant, so use a separate protector if you need spill protection.
Frequently Asked Questions
Are these products fitted sheets?
No. They are mattress toppers and mattress pads. They sit between the mattress and fitted sheet, adding a layer of cushioning or a different surface feel.
What fitted-sheet pocket depth do I need for a memory foam mattress?
Measure the mattress from its bottom edge to the top, then add the height of any topper or pad. Choose a fitted sheet with a pocket depth that covers the full measurement. A little extra depth can help the sheet stay tucked around the corners.
Will a deep-pocket topper make my fitted sheet fit better?
Not necessarily. A topper’s pocket is designed to secure the topper to the mattress. It does not increase the pocket depth of your fitted sheet. Since the topper adds height, your existing sheet may fit less securely.
Can I use one of these toppers on a memory foam mattress?
These products are described as mattress toppers or pads and can be placed over a mattress, but confirm the size and depth fit for your bed. Follow your mattress manufacturer’s care guidance, especially if it has specific instructions about added layers.
Which option has the widest stated mattress-depth range?
The Niagara toppers and cotton-top mattress pad are listed for mattresses 8 to 20 inches deep. The BEDLORE toppers are listed for 6 to 18 inches. These are fit ranges for the products themselves, not recommendations for fitted-sheet pocket depth.
Are any of these products waterproof?
No. The supplied product details describe these toppers and pads as not water-resistant. Use a separate mattress protector if you need a barrier against spills or moisture.
Which option should I choose if I only want a fitted sheet?
None of these products is a fitted sheet. Look for a sheet sold as a fitted sheet in your mattress size, and match its pocket depth to the mattress plus any topper or pad. These picks are for shoppers who also want an added comfort layer.
Final Recommendation
For a soft queen-size layer with a wide stated fit range, the Niagara Sleep Solution queen topper is the most versatile choice in this group. Choose the Niagara cotton-top pad if you prefer a cotton surface, or the BEDLORE option if you want a quilted pillow-top feel and your mattress is within its listed depth limit. If your main goal is a fitted sheet that stays secure on memory foam, measure the full bed height first and buy sheets with enough pocket depth—the products here are toppers and pads, not sheets.
