If nighttime heartburn or reflux makes it hard to rest, raising your upper body may be worth considering. A mattress wedge can create that incline either beneath your mattress or on top of it. The right style depends on how much lift you want, whether you share your bed, and how much you want to change your sleep setup. These five options range from gentle, full-length mattress elevators to an adjustable under-mattress support and a wide surface wedge. Elevation may help some people feel more comfortable, but it is not a substitute for medical care or a guaranteed treatment for GERD.
Quick Comparison
| Product | Lift or incline | Placement | Standout feature |
|---|---|---|---|
| Avana Mattress Elevator 5-Inch | 5-inch gradual incline | Under mattress | Subtle, full-length foam support |
| Kamellia Queen Size Wedge Pillow 4-Inch | 4-inch, 8-degree incline | On or under mattress | 60-inch-wide surface |
| Wellness Wedge Orthopedic Bed Wedge | 2.5 or 5 inches | Between mattress and box spring | Two-piece adjustable design |
| Avana Mattress Elevator 7-Inch | 7-inch gradual incline | Under mattress | Steeper lift with split sections for full size |
| Lazyzizi 5-Inch Queen Mattress Wedge | 5-inch incline | On or under mattress | Four suggested ways to use it |
Our Picks: Best Mattress Wedge For Gerd reviews
1. Avana Mattress Elevator 5-Inch: A Gentle Full-Length Incline
The Avana 5-inch Mattress Elevator is a foam support that goes beneath the mattress, lifting it along its length rather than raising only the head and shoulders. Its gradual slope is designed for people who want some elevation without a sharply angled sleeping surface.
The high-density foam is made in the United States and is CertiPUR-US certified, according to the product information. The elevator ships compressed, so plan to give it room and time to expand before setting up your bed. The listed twin version arrives as one 39-inch-wide slanted piece.
This style may suit you if you want to keep your sleep surface clear and prefer a broad, gradual incline. Compared with a wedge placed on top of the mattress, it does not add a separate raised cushion beneath your head. Its 5-inch lift is also a middle ground between the milder 4-inch Kamellia and the steeper 7-inch Avana.
A full-length incline changes the position of the mattress, so check that your bed setup can accommodate a support underneath it. The product information does not list dimensions for every size, so confirm the size options and fit before ordering. Elevation may make some people more comfortable, but results can vary.
Pros:
- Raises the mattress gradually along its length
- Low-profile 5-inch incline for a gentler lift
- High-density foam with CertiPUR-US certification
- Does not take up space on top of the mattress
Cons:
- Requires lifting the mattress to install
- Compressed foam needs time to expand
Verdict: Choose the Avana 5-inch elevator if you want a moderate, under-mattress incline and do not want a wedge taking up space on your bed.
2. Kamellia Queen Wedge Pillow: A Wide Surface for Shared Beds
The Kamellia is a 26-by-60-inch foam wedge with a 4-inch rise and an 8-degree incline. Its extra-wide shape is designed to span a queen bed, giving you more room to shift position than a narrow wedge pillow. It can be placed beneath the head and shoulders, or used under the mattress for a slight incline, according to the product description.
The high-density foam is covered in breathable fabric. Its removable cover has a hidden zipper and is described as machine washable, which can make routine care easier. The wedge ships compressed; allow 48 to 72 hours for it to expand, with longer expansion possible in colder conditions.
This option may work well if you share a queen bed or want a surface wedge that leaves room to move from side to side. The 4-inch lift is the mildest listed height among these picks, though the Wellness Wedge can be arranged for a lower 2.5-inch lift. Unlike the Avana elevators, the Kamellia can also sit on top of the mattress, where it will occupy part of the sleeping surface.
Its wide size is a benefit for coverage, but it may be less convenient to move or store than a smaller wedge. The product description also suggests using it under the legs, so consider whether you need that flexibility or mainly want a head-and-shoulder incline.
Pros:
- Wide 60-inch surface designed for queen beds
- Gentle 4-inch, 8-degree incline
- Removable cover is described as machine washable
- Can be used on top of or under the mattress
Cons:
- Large size may be harder to move and store
- Needs time to fully expand after delivery
Verdict: The Kamellia is a practical choice if you want a mild incline with a wide surface, especially when you share a queen bed or want a wedge that can serve more than one purpose.
3. Wellness Wedge: Adjustable Lift That Sits Under the Mattress
The Wellness Wedge is a two-piece set of interlocking plastic supports made to sit between a mattress and a box spring. Placed side by side, the pieces provide 2.5 inches of lift; interlocked, they provide 5 inches, with the final angle depending in part on mattress firmness. This lets you choose between two heights without adding a foam cushion to the top of the bed.
The product describes its slope as an 8-degree incline and says the supports fit under the mattress. Its plastic construction differs from the foam elevators in this roundup. The manufacturer also says the material does not release chemicals into the air or collect odors over time.
This design may appeal if you want to adjust the height or prefer a support that does not need a fabric cover. Compared with the Avana foam elevators, it offers two setup options but does not raise the mattress along its full length in the same way as a foam elevator. Before buying, check that your bed has a box spring and a suitable space between it and the mattress.
Because the lift depends partly on mattress firmness, the resulting feel may differ from one bed to another. The rigid plastic construction may also feel less forgiving than a foam support during setup, so take care when positioning the pieces under a heavy mattress.
Pros:
- Two height settings: 2.5 inches or 5 inches
- Fits between the mattress and box spring
- Does not add a separate cushion to the sleep surface
- Plastic construction does not need a fabric cover
Cons:
- Requires a compatible mattress-and-box-spring setup
- Lift and angle can depend on mattress firmness
Verdict: Pick the Wellness Wedge if adjustable height and an under-mattress design matter more to you than the softer feel of a foam elevator.
4. Avana Mattress Elevator 7-Inch: A Steeper Under-Bed Incline
This Avana mattress elevator is a high-density foam support that lifts the mattress along its length, with a 7-inch rise. It is designed for people who want a steeper incline than the brand’s 5-inch option. A more noticeable angle may take some adjustment, so it is worth thinking carefully about your comfort with elevation before choosing the higher lift.
The foam is made in the United States and is CertiPUR-US certified, according to the product information. The support ships compressed. For full-size beds, it arrives as two 27-inch-wide slanted sections, which are intended to make installation under a heavy mattress easier and storage more manageable.
Compared with the 5-inch Avana, this model prioritizes a stronger incline over a subtler change in sleep position. It may suit you if you specifically want a taller lift and are comfortable adapting to a more angled bed. The split full-size design can also be easier to place than one wide piece.
A 7-inch rise is not the mildest option in this guide, and not everyone will find a steeper incline comfortable. Check the available size and fit for your bed before ordering, since the product description only specifies the split sections for full size. As with any elevation product, do not assume that it will resolve GERD symptoms.
Pros:
- Steeper 7-inch incline for people seeking more lift
- Raises the mattress along its length
- Full-size version uses two sections for installation
- High-density foam with CertiPUR-US certification
Cons:
- Higher incline may take time to get used to
- Compressed foam needs time to expand
Verdict: Choose the Avana 7-inch elevator if you want a more pronounced full-length incline and are comfortable with a steeper sleeping angle.
5. Lazyzizi 5-Inch Queen Mattress Wedge: A Versatile Foam Option
The Lazyzizi is a 5-inch foam mattress wedge offered in queen size, with a 7-inch version also listed in the product information. It is designed for several placements: beneath the mattress as a mattress elevator, beneath the legs, on top of the mattress as a wedge topper, or on top as a leg rest.
The product information describes the foam as high-density and CertiPUR-certified. The wedge ships compressed and should be placed flat in a ventilated area for 24 to 72 hours to expand. It also arrives with a dust cover that the instructions say can be removed after delivery.
This option may suit you if you want to try different placements instead of committing to a single under-mattress setup. It offers a similar 5-inch rise to the Avana 5-inch elevator, while adding on-top use and a choice of a taller version. Unlike the Kamellia, the product information does not specify an extra-wide surface dimension beyond the queen-size description.
Using the wedge on top of the mattress means it will take up space on the bed, while placing it beneath the mattress requires lifting the mattress to set it up. The expansion period also means it may not be ready for use right after unpacking. Confirm the size and configuration you need before ordering.
Pros:
- Several suggested ways to position the wedge
- 5-inch and 7-inch options are listed
- High-density foam with CertiPUR certification
- Can be used as an under-mattress elevator or surface wedge
Cons:
- Needs 24 to 72 hours to expand after unpacking
- On-mattress use takes up sleeping space
Verdict: The Lazyzizi is worth considering if flexibility is your priority and you want the option to use the wedge either beneath or on top of your mattress.
How to Choose a Mattress Wedge for GERD
Decide whether the wedge goes on or under the mattress
An under-mattress elevator raises the bed without adding a cushion to the surface where you sleep. That can be a good fit if you want to keep your bedding and sleep area clear. A wedge placed on top gives you a separate inclined surface and may be easier to move, but it uses some of the mattress space. Some products in this guide are described for either placement, so check the specific instructions before choosing.
Choose a lift that feels manageable
The options here range from a 4-inch wedge to a 7-inch mattress elevator, with some products offering more than one height. A gentler incline may feel like a less dramatic change, while a steeper one creates more elevation but may take more adjustment. If you are unsure, consider starting with a lower lift or a product with adjustable height, such as the Wellness Wedge.
Check the incline and the shape of the support
Height alone does not tell you how the incline will feel. The Kamellia and Wellness Wedge list an 8-degree slope, while the Avana products are described as gradual full-length mattress elevators. Consider whether you prefer an angled cushion under your upper body or a slope that raises the mattress along its length.
Match the size to your bed
Confirm the product’s size and measurements before ordering. The Kamellia lists a 60-inch width and is designed for queen beds; the Avana 7-inch full-size version comes as two 27-inch-wide sections. The Wellness Wedge needs space between the mattress and a box spring. If product details do not clearly list your bed size, check the current listing before purchase.
Consider who shares the bed and how you move at night
A wide surface may give you more room to shift position, especially if you share a bed. A smaller on-mattress wedge can limit where you sleep, while an under-mattress support keeps the top surface more open. Think about how you and your bed partner use the mattress before deciding which format is likely to fit your routine.
Review materials, care, and setup needs
Foam wedges may arrive compressed and need time to expand before use. The product descriptions in this guide give expansion estimates ranging from 24 to 72 hours. The Kamellia has a removable cover described as machine washable, while the Wellness Wedge uses plastic supports. Check the product instructions for care and setup details, and make sure you can safely lift your mattress to install an under-bed model.
Keep expectations realistic and seek medical advice when needed
These products are designed to elevate the upper body or mattress, but they cannot guarantee relief from GERD or other symptoms. If reflux is frequent, severe, worsening, or affecting your sleep, speak with a healthcare professional about appropriate care. Ask a clinician whether an inclined sleep position makes sense for your health needs.
Frequently Asked Questions
Can a mattress wedge help with GERD at night?
A wedge or mattress elevator is designed to raise your upper body or the bed. Some people may find elevation helpful, but it does not work the same way for everyone and is not a guaranteed treatment for GERD. Talk with a healthcare professional about persistent or severe symptoms.
Is an under-mattress elevator different from a wedge pillow?
Yes. An under-mattress elevator sits beneath the mattress and raises it, while a wedge pillow usually sits on top and supports your body at an angle. Some products are described for both placements, so follow the directions for the model you choose.
What height should I choose?
That depends on the incline you find comfortable and how much lift you want. The products in this guide range from 4 to 7 inches, and the Wellness Wedge offers a 2.5-inch or 5-inch setup. Height does not guarantee a particular level of symptom relief, so consider comfort and discuss medical concerns with a clinician.
Will an under-mattress wedge fit any bed?
Not necessarily. Some supports are designed to sit between a mattress and a box spring, while others fit beneath the mattress. Check your bed setup, product dimensions, and the listing’s size options before buying.
How long should a compressed foam wedge take to expand?
It varies by product. The Kamellia description recommends allowing 48 to 72 hours, while the Lazyzizi description gives a 24-to-72-hour estimate. Expansion may take longer in colder conditions for the Kamellia. Follow the instructions provided with your specific product.
Can I use a mattress wedge for purposes other than reflux?
Several products are also described for uses such as leg elevation or body support. The Kamellia and Lazyzizi list multiple suggested positions, while the Avana elevators are designed to raise the mattress. Follow each product’s instructions, and ask a healthcare professional before using elevation for a medical concern.
Final Recommendation
For a moderate, full-length incline without a cushion on top of the bed, the Avana 5-inch Mattress Elevator is a straightforward place to start. Choose the Kamellia if a wide queen-size wedge surface matters most, or the Wellness Wedge if you want two height settings and have a compatible box-spring setup. The Avana 7-inch model is better suited to shoppers who specifically want a steeper lift, while Lazyzizi offers more placement options. Compare the fit, height, and setup requirements with your bed and comfort needs, and speak with a healthcare professional if GERD symptoms continue.