Quick answer: A triangle or wedge pillow is a sloped cushion that can support your upper body while reading or resting, or elevate your legs when used appropriately. For nighttime reflux, a clinician may suggest upper-body elevation; the right wedge depends on your body, comfort and medical needs.
This is a buying guide based on product information and health guidance. It does not claim an in-house comparison of every pillow mentioned.
What is a triangle pillow used for?
A bed wedge is usually a foam cushion with a gradual incline. Some models have a removable cover or multiple pieces that can be arranged for different positions. A Thai triangle pillow is a different style of structured lounge cushion and may not be designed for sleeping.
| Use | What to look for | Important limitation |
|---|---|---|
| Reading or watching TV | A supportive backrest with an angle that feels comfortable. | A steep cushion may be comfortable for sitting but awkward for overnight sleep. |
| Elevating the upper body | A long enough slope to support the upper back as well as the head. | It is not a substitute for medical care or prescribed treatment. |
| Leg support | Width and contour that support the intended position without slipping. | Ask a clinician about elevation if you have a medical condition or recent surgery. |
| Flexible lounging | Modular pieces, washable covers and storage space. | Multiple-piece sets can shift and occupy more room. |
Wedges and nighttime reflux
The National Institute of Diabetes and Digestive and Kidney Diseases notes that a doctor may recommend elevating the head and upper back for reflux, including using a foam wedge. It describes raising the head 6 to 8 inches; a wedge’s advertised peak height does not necessarily equal the elevation your head actually receives. Ask your clinician what is appropriate for you.
A wedge does not diagnose or cure reflux, sleep apnea or other conditions. Continue prescribed CPAP or other treatment, and talk to a clinician about persistent symptoms. For postoperative use or a specific medical need, follow your care team’s positioning instructions.
Infant safety: Do not use a wedge or inclined pillow as an infant sleep surface. Babies need a separate, firm, flat sleep surface; see the American Academy of Pediatrics’ safe-sleep guidance.
How to choose the right wedge pillow
- Choose the purpose. A lower, longer incline may feel different from a tall reading backrest. Look at the slope, not peak height alone.
- Measure the footprint. Check length, width and height against your mattress, your body and your partner’s space. A pillow that is too short can create an uncomfortable bend.
- Consider your position. Try your normal sleeping posture, and check that your neck and shoulders feel supported without sliding down. Comfort differs by person.
- Check firmness and cover. A firmer support foam and a soft top layer feel different; read the actual materials and whether the cover can be removed and washed.
- Read the return policy. Hygiene rules and final-sale exclusions may vary by model and size.
Example: Brentwood Home Zuma wedge
The Zuma product page lists a foam wedge with a removable washable cover and 7-, 10- and 12-inch heights. Its listed dimensions are 24 × 24 inches at each height. The manufacturer identifies the cover as bamboo-derived rayon and the foam as CertiPUR-US certified; that certification applies to the foam, not every part of the finished pillow.
On October 26, 2026, the listing showed the 7-inch version at $59 and identified the 10- and 12-inch versions as final sale. Prices, stock and terms can change, so confirm the selected size and return terms before ordering. This is a product-information example, not an assertion that Yawnder personally tested or ranked it against competitors.
Visit the Brentwood Home store (affiliate link; opens the store homepage). Search for “Zuma Foam Wedge Pillow” there if you want to locate the product.
Care and return considerations
Follow the care label for your model. Many foam inserts should not be soaked or machine-washed; a removable cover may have different instructions. Let any cleaned component dry fully before use, and confirm care directions with the manufacturer.
Do not assume a mattress trial applies to pillows. Brentwood Home’s Zuma page lists a 30-day return period generally while explicitly marking its 10- and 12-inch versions final sale. Check current details for the exact selection and seller.
Frequently asked questions
Is a triangle pillow the same as a bed wedge?
“Triangle pillow” can refer to a foam bed wedge or a firm triangular lounge cushion. Check the shape, dimensions and intended use.
What height is best?
There is no single best height. Consider the full slope, how much of your upper back it supports, comfort in your usual position and any clinical recommendation.
Can a wedge treat sleep apnea?
It should not replace diagnosis or prescribed therapy. Discuss positioning with your sleep clinician and continue your recommended treatment.
Can I wash a wedge pillow?
It depends on the product. A removable cover may be washable while the foam core has different care requirements; check the label.
Are wedges safe for babies?
No. Follow infant safe-sleep recommendations for a separate, firm, flat surface rather than an inclined pillow.
Final take: Choose the slope and size for your intended position, then check care and return terms. For medical concerns, ask your clinician rather than relying on product claims.