A deep memory foam mattress topper can add noticeable cushioning and change how a firm or worn mattress feels without replacing the whole bed. The options below are all about five inches thick, but they differ in their fill, fit system, fabric, and size. Compare those details with your mattress and sleep preferences before choosing: a plush, lofty topper may feel quite different from a more body-contouring foam layer.
Quick Comparison
| Topper | Size listed | Key design | Best for |
|---|---|---|---|
| SHOUREN 5-Inch Memory Foam Topper | Queen | Gel memory foam and supportive shredded foam; corner straps | Those who want a thick, layered foam feel |
| NightHug 5-Inch Pillow-Top Topper | Queen | Shredded memory foam, down-alternative layer, deep pockets | Shoppers who prefer a fluffy, wrapped fit |
| WhatsBedding 5-Inch Topper | Full | Shredded memory foam and down-alternative fill | Full beds and plush cushioning |
| WhatsBedding 5-Inch Air Layer Topper | Queen | Memory foam and crushed foam; four corner straps | Queen beds needing a secure, layered topper |
| EDUJIN 5-Inch Gel Memory Foam Topper | King | Multi-layer fill with circle quilting and deep skirt | King beds and shoppers seeking a quilted pillow-top design |
Our Picks: Best Deep Memory Foam Mattress Topper reviews
SHOUREN: A Thick Layered Topper with Corner Straps
The SHOUREN is a queen-size topper with a five-inch profile. Its listed construction combines gel memory foam with supportive shredded foam, aiming to pair body-contouring cushioning with a more substantial feel. That layered design may appeal if you want a noticeable change to your bed rather than a thin comfort pad.
Four elastic corner straps are designed to help keep it in place, while dot quilting is intended to spread the filling more evenly. The fabric is described as breathable, but the supplied details do not provide a specific temperature rating. As with any thick topper, measure your mattress and sheets before buying; the added height may affect how well fitted sheets stay on.
The product description says to allow 24–48 hours for the vacuum-compressed topper to expand. Its back-pain-relief language should be treated as a comfort claim, not a guarantee: a topper may change pressure and cushioning, but it cannot diagnose or treat the cause of pain.
Pros:
- Five-inch, two-part foam construction
- Four corner straps help limit shifting
- Dot quilting is intended to keep filling evenly distributed
- Queen size is clearly specified
Cons:
- Its deep profile may require checking sheet fit and bed height
- Full expansion may take up to 48 hours
Verdict: Choose the SHOUREN if you want a thick queen topper with both gel memory foam and shredded foam, plus corner straps to help hold it in place.
NightHug: A Fluffy Queen Topper with Deep Pockets
The NightHug combines shredded memory foam with a down-alternative layer for a plush pillow-top style. Its cotton top and 3D air-mesh sides are designed to encourage airflow and move moisture away. This makes it a different proposition from toppers built around a more solid foam layer: expect a lofty, cushioned surface rather than a simple slab of foam.
A 15-inch extended pocket and all-around elastic band are designed for mattresses from 8 to 21 inches deep. Check your mattress depth before ordering, especially if you use a mattress protector or other bedding layers. The product description says the topper is vacuum-packed and may need gentle fluffing and up to 24 hours to expand.
The 2000 GSM fill is a specification, not a measure of firmness. If you want a precise feel, the supplied information does not give a firmness rating or separate thickness measurements for each layer. Compared with the SHOUREN, NightHug emphasizes a wrapped, fluffy construction and deep-pocket fit over corner straps.
Pros:
- Shredded memory foam paired with a down-alternative layer
- Cotton top and mesh sides are designed for airflow
- Deep pockets fit the stated range of mattress depths
- All-around elastic is intended to help reduce shifting
Cons:
- The plush pillow-top feel may not suit shoppers seeking a firmer surface
- It may need fluffing and time to regain loft after unpacking
Verdict: The NightHug is a strong match for queen-bed shoppers who want a lofty, pillow-top feel and a deep-pocket design rather than corner straps.
WhatsBedding: A Full-Size Plush Topper with Shredded Fill
This WhatsBedding model is listed as a full-size topper measuring 54 by 75 inches. It uses 2000 GSM shredded memory foam with a thick down-alternative layer, creating a fluffy pillow-top design. Its circle quilting is intended to keep the fill from bunching and to maintain a more even surface.
Elastic deep pockets are specified for mattresses from 8 to 21 inches deep. That full-wrap style may suit a bed that needs more coverage around its edges, but confirm your mattress dimensions and depth before ordering. The listed size is full, so it is not the right option for a queen or king bed.
The design aims for a soft, breathable feel, but the supplied details do not state a firmness level or give separate measurements for the foam and alternative-fill layers. The topper is compressed for shipping; the product description recommends patting it gently and allowing 24 hours to reach its loft. Compared with the queen-size NightHug, this is the more direct choice for a full mattress.
Pros:
- Full size is specified as 54 by 75 inches
- Shredded foam and down-alternative fill create a plush design
- Circle quilting is intended to limit bunching
- Deep pockets are designed for mattresses 8 to 21 inches deep
Cons:
- Only the full size is specified in the supplied product details
- The soft, lofty construction may not suit those seeking a firm foam surface
Verdict: Consider this WhatsBedding model if you have a full bed and want a thick, fluffy topper with deep pockets.
WhatsBedding Air Layer: A Queen Topper with Four Corner Straps
This five-inch queen topper pairs memory foam with crushed foam in a two-layer design. The brand describes the combination as a way to add softness while keeping a supportive feel. Its breathable surface and dot-stitch quilting are intended to help with airflow and keep the filling spread across the topper.
Four elastic straps attach at the corners and are specified for mattresses from 8 to 21 inches thick. That setup is straightforward and may be useful if you want to secure the topper without a full elastic skirt. The fabric is described as breathable and sweat-absorbing, but no specific cooling performance or temperature range is provided.
This model has a similar five-inch layered format to the SHOUREN, but the listed materials differ: the WhatsBedding description calls out crushed foam, while SHOUREN specifies gel memory foam and supportive shredded foam. The WhatsBedding topper is compressed for delivery and needs 24–48 hours to expand. As with any deep topper, account for the extra height when choosing sheets.
Pros:
- Five-inch queen design combines memory foam and crushed foam
- Four corner straps are designed to keep it in place
- Stated fit range covers mattresses 8 to 21 inches thick
- Dot stitching is intended to help distribute the fill
Cons:
- The product details do not specify a firmness level
- It can take up to 48 hours to fully expand
Verdict: Pick this WhatsBedding option if you want a five-inch queen topper with a layered foam design and corner straps for a broad range of mattress depths.
EDUJIN: A Quilted King Topper with Deep Skirt
The EDUJIN is listed for a king mattress measuring 78 by 80 inches. Its four-layer construction combines a gel memory foam layer with a supportive memory foam blend and a quilted top. The circle quilting is intended to hold the filling in place and help limit shifting or clumping over time.
A 360-degree elastic skirt is designed to fit mattresses up to 20 inches deep, with the product details also giving a range of 8 to 20 inches. The top and bottom are described as breathable polyester peach fabric. These material details may help you compare it with the other options, but the supplied information does not include a firmness rating or washing instructions.
The listing describes the foam as soft and quick to rebound, while the additional support layer is intended to add resilience. It is shipped compressed and should be allowed several hours to expand. Compared with the other picks, EDUJIN stands out for its specific king dimensions and full-skirt design rather than corner straps.
Pros:
- King dimensions are listed as 78 by 80 inches
- Multi-layer construction includes gel memory foam
- Full elastic skirt fits the stated 8-to-20-inch depth range
- Circle quilting is intended to secure the filling
Cons:
- Its stated mattress-depth limit is lower than some other options
- The supplied details do not specify a firmness rating or care method
Verdict: The EDUJIN is the most clearly specified choice here for a king bed if you want a quilted, multi-layer topper with a full elastic skirt.
How to Choose a Deep Memory Foam Mattress Topper
Match the topper to your mattress size
Start with the exact size of your bed. The options here include queen, full, and king models, and those sizes are not interchangeable. For example, the WhatsBedding model with the 54-by-75-inch dimensions is listed for a full mattress, while the EDUJIN is listed for a 78-by-80-inch king bed. Check the product listing and your mattress measurements before ordering.
Measure mattress depth and bedding layers
Deep-pocket toppers and fitted skirts have stated depth ranges, but you should measure your mattress from bottom edge to top surface. Include any protector or bedding layer that will sit under the topper. A five-inch topper also raises the overall bed height, so check whether your fitted sheets have enough depth to stay secure.
Choose the kind of cushioning you prefer
These products use different combinations of foam and plush fill. The SHOUREN and WhatsBedding Air Layer models describe layered foam constructions, while the NightHug and full-size WhatsBedding model pair shredded memory foam with down-alternative fill. The EDUJIN describes several layers, including gel memory foam. A pillow-top style may feel loftier; a foam-focused design may feel more contouring. The supplied details do not provide consistent firmness measurements, so treat terms like “soft” and “supportive” as general descriptions rather than precise ratings.
Consider how the topper attaches
Corner straps and full elastic skirts are different ways to help keep a topper in place. The SHOUREN and WhatsBedding Air Layer use four corner straps. NightHug and the full-size WhatsBedding use deep pockets with an elastic wrap, while EDUJIN uses a full elastic skirt. Choose based on your mattress depth and how you prefer the topper to attach.
Think about heat and airflow claims
Some listings describe breathable fabric, mesh sides, or airflow-focused construction. NightHug specifies a cotton top and 3D air-mesh sides; other options describe breathable fabric or materials intended to help with ventilation. These features may matter if you tend to sleep warm, but the supplied specifications do not provide standardized temperature tests. Avoid treating a “cooling” or breathable description as a guarantee that you will stay cool.
Plan for setup and expansion
Several toppers arrive vacuum-compressed and need time to regain their loft. The supplied instructions range from several hours to 24–48 hours, depending on the model. Give the topper room to expand before judging its final thickness, and follow the instructions included with your specific purchase. Check the product page for care guidance, since washing details are not provided for every option.
Frequently Asked Questions
What makes a mattress topper “deep”?
In this selection, each topper is described as about five inches thick. That is a substantial added layer compared with a thin mattress pad, but the exact feel depends on its foam and fill construction.
Can a deep memory foam topper help with back discomfort?
A topper can change the cushioning and pressure feel of your bed, which some people may find more comfortable. It is not a treatment for back pain, and the product descriptions do not establish that any topper will relieve pain for every sleeper. If discomfort persists, seek advice from a qualified health professional.
Will a five-inch topper fit under my fitted sheet?
It depends on the depth of your mattress, the topper’s attachment design, and the pocket depth of your sheets. Measure the full height after adding the topper and check your sheet specifications before buying.
How long should I let a compressed topper expand?
Follow the instructions for the model you choose. The supplied descriptions recommend anywhere from several hours to 24–48 hours. Some also suggest gently fluffing or patting the topper after unpacking.
Are shredded foam and solid memory foam the same?
No. Shredded foam is made of smaller pieces and is often combined with other fill in a pillow-top design. A solid foam layer is a continuous piece. The products in this selection use different blends, so check each listing for its specific construction.
Which option is made for a full-size bed?
The WhatsBedding topper with the 54-by-75-inch dimensions is listed for a full mattress. Confirm the size and fit details on the product page before placing an order.
Final Recommendation
For a queen bed and a straightforward layered foam design, compare the SHOUREN and WhatsBedding Air Layer models, paying close attention to their different foam descriptions and corner straps. If you prefer a plush pillow-top feel with deep pockets, NightHug is the more fitting choice. Full-bed shoppers can consider the full-size WhatsBedding, while the EDUJIN is the clearly specified king option. Whichever you choose, measure your mattress, confirm the attachment range, and allow the topper time to expand before deciding how it feels.