Product Description
The MOBB Convertible Coccyx Wedge is a full-size seating wedge with a removable coccyx cut-out that attaches and detaches by Velcro. Measuring 18″W × 16″D and tapering from 4.5″ to 3″, it combines pelvic positioning with tailbone pressure relief in one cushion, topped with 1″ of memory foam and supplied with a wood insert.
Most people shopping for a seat cushion are solving one of two problems: they slump, or their tailbone hurts. The usual answer is two different cushions — a wedge for the first, a coccyx cushion for the second. This one does both, and the Velcro section is the reason. Leave the wedge section in place for a solid, supportive seat; remove it and the cushion becomes a coccyx-relief cushion with a channel that keeps weight off the tailbone entirely.
The top inch is memory foam rather than plain polyurethane, which matters over a long sitting session because it redistributes pressure around the sitting bones instead of concentrating it. The supplied wood insert sits underneath to stop the cushion sinking into a sling-seat wheelchair, which is the usual cause of a good cushion feeling unsupportive within a few months.
Key Features
Removable Coccyx Cut-Out Attaches by Velcro. In place, you get a full supportive wedge; removed, you get a coccyx channel that lifts pressure off the tailbone entirely. One cushion, two configurations.
1″ Memory Foam Top Layer The top inch is memory foam, which spreads load around the sitting bones rather than concentrating it — the difference shows over hours rather than minutes.
Wedge Profile for Posture Tapering from 4.5″ at the back to 3″ at the front, the wedge tilts the pelvis forward to help the lower spine hold its natural curve.
Wood Insert Included A rigid base board stops the cushion sinking into a sling-seat wheelchair, which is what makes most cushions feel unsupportive after a few months of use.
Breathable, Washable Cover The cover is breathable to reduce heat build-up and removable for washing.
Lifetime Limited Warranty Backed by MOBB Home Health Care’s lifetime limited warranty against manufacturing defects.
Wedge, Coccyx Cushion, or Both?
If your problem is posture — slumping, sliding forward, lower back fatigue — the wedge section does the work and you can leave the cut-out section in place. If your problem is tailbone pain from a fall, a fracture, prolonged sitting or pregnancy, remove the section and the cushion creates a channel so your tailbone bears no direct load.
The practical advantage is that you do not have to decide in advance, and you can change your mind as recovery progresses. Someone recovering from a coccyx injury typically wants the cut-out early on and the full wedge later, and this cushion covers both stages. If you only ever need flat coccyx relief without the wedge angle, the Convertible Coccyx Cushion is the flat-profile version of the same idea.
Specifications
| Specification |
Details |
| MHCC |
18''W x 16''D x 3''-4.5''H |
| *** |
Washable Cover |
| Warranty |
Lifetime Limited Warranty |
| SKU |
MHCWC |
| Brand |
MOBB Home Health Care |
Best For
- People with tailbone pain from a fall, fracture, prolonged sitting or pregnancy who also want postural support
- Wheelchair users on sling seats, where the included wood insert prevents the cushion sinking into the hammock
- Anyone who is not sure whether they need a wedge or a coccyx cushion and would rather have both in one product
- Recovery periods where needs change over time — cut-out early on, full wedge later
Why Choose This Product
- Genuinely two cushions in one, with the Velcro section letting you switch between wedge and coccyx-relief configurations
- Memory foam top layer and an included wood insert — specifications usually found on cushions costing considerably more
- Lifetime limited warranty, stocked in Canada by Factory Direct Medical
Frequently Asked Questions
How does a coccyx cushion actually help tailbone pain?
It removes the load rather than padding it. A cut-out or channel at the rear means that when you sit, your weight is carried by the sitting bones on either side and the tailbone bridges an open gap, bearing nothing. Padding alone still transmits force through the tailbone; a cut-out does not. This is why cut-out cushions are the standard recommendation after a coccyx injury.
What is the difference between the Convertible Coccyx Wedge and the Convertible Coccyx Cushion?
The Wedge is angled, tapering from 4.5″ to 3″, so it tilts the pelvis forward for posture as well as relieving the tailbone. The Cushion is a flat 3″ profile in the same family, with the same removable Velcro cut-out, and is the choice when you want coccyx relief without changing the seat angle. The Cushion also comes in three widths; the Wedge comes in one.
What is the wood insert for?
Wheelchair seats are usually a fabric sling, which sags into a hammock shape under load. A cushion placed on a sagging sling sags with it, so the user ends up tilted inward at the hips regardless of how good the cushion is. The rigid wood insert sits under the foam and gives it a flat base to work from. On a firm chair you will not need it.
Can I machine wash the cover?
The cover is removable and washable. Wash the cover only — the memory foam core should be spot cleaned and air dried. Memory foam should never be soaked or machine washed, as water breaks down its cell structure and it can take several days to dry through.
Summary
The MOBB Convertible Coccyx Wedge is an 18″ × 16″ seating wedge tapering from 4.5″ to 3″, with a Velcro-attached removable coccyx cut-out, a 1″ memory foam top layer, an included wood insert and a breathable washable cover.
Important Notice: This product is a comfort and positioning aid and is not a substitute for professional medical advice, diagnosis or treatment. If you are managing pressure injuries, post-surgical recovery or a diagnosed spinal condition, consult an occupational therapist or physiotherapist before use to confirm it is appropriate for you. Discontinue use and seek advice if you experience increased pain, numbness or skin redness.
