ReliefCore™ Coccyx Seat Cushion — Memory Foam
ReliefCore™ Coccyx Seat Cushion — Memory Foam
A U-shaped memory foam seat cushion designed to redistribute pressure away from the tailbone during long sitting.
Built for: Office workers, drivers, frequent travelers — anyone sitting 6+ hours a day on hard surfaces.
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Memory foam coccyx cushion designed for the ongoing tailbone discomfort of prolonged sitting.
If sitting for more than 30 minutes makes your tailbone tension, you need targeted pressure relief — not a flat foam square. The ReliefCore™ uses a precision U-shaped cutout to lift your coccyx completely off the chair surface, while supporting your sit bones with 60-density memory foam.
How ReliefCore™ Works
The U-cut design creates a structural void exactly where your coccyx contacts the chair. Pressure transfers to your ischial tuberosities (sit bones) — designed to bear weight. Memory foam molds to your hips and thighs, distributing the load evenly.
Key Benefits
- ✓ Targeted coccyx pressure relief — U-cut design redirects pressure away from the tailbone
- ✓ 60-density memory foam — supports sit bones without flattening over months
- ✓ Anti-slip rubber base — stays put on office chairs, car seats, dining chairs
- ✓ Built-in carry handle — easy to move between desk, car, and travel
- ✓ Removable washable cover — fresh and clean year-round
- ✓ 4.75★ rated — 8 verified US buyers
Who ReliefCore™ Is For
- 📊 Desk workers with ongoing tailbone discomfort after 30+ min
- 🚗 Commuters and drivers on long routes
- 🩺 Post-injury recovery from a fall or impact on the tailbone
- 🪑 Anyone who's tried regular foam cushions without coccyx relief
Specifications
- Dimensions: 18" × 14" × 3" (46 × 36 × 8 cm)
- Material: 60-density viscoelastic memory foam
- Cover: Breathable velour, removable, washable at 30°C
- Base: Anti-slip rubber
- Features: Built-in carry handle
- What's included: 1× ReliefCore™ + cover
Disclaimer: This product is designed for ergonomic comfort and support. It is not intended to diagnose, treat, cure, or prevent any medical condition. Results may vary. Consult a healthcare professional for medical concerns.
Built for the way you actually live
Designed for Office workers, drivers, frequent travelers — anyone sitting 6+ hours a day on hard surfaces..
How it works
Place on any seat
Memory foam molds to your body weight within 60 seconds.
Sit naturally
The U-cut channel keeps pressure off the tailbone area; foam supports the sit bones.
Lift & maintain
Foam returns to original shape; mesh cover unzips for machine washing.
What makes this different
U-cut tailbone channel
Engineered cutout designed to reduce pressure on the coccyx during prolonged sitting.
High-density memory foam
65 kg/m³ density — designed to resist flattening through repeated use.
Breathable mesh cover
Stays cool under continuous use — machine-washable at 30°C.
Non-slip silicone base
Stays in place on leather, mesh, or fabric chairs.
Travel-friendly
Compact 3-inch profile fits office, car, and airline seats.
CertiPUR-US certified foam
Foam meets emissions and content standards.
What ergonomists say about good seating support
Materials & specs
| Dimensions | 18 × 14 × 3 inches (46 × 36 × 8 cm) |
|---|---|
| Weight | 1.4 lb (650 g) |
| Materials | Memory foam core + polyester mesh cover |
| Cover | Removable, machine-washable, YKK zipper |
| Foam density | 65 kg/m³ high-resilience memory foam |
| Certifications | CertiPUR-US certified foam |
| Care instructions | Machine wash cover at 30°C, air dry. Spot-clean foam. |
| Warranty | 30-day money-back guarantee |
Cusheal vs. cheap alternatives
| Feature | Cusheal | Cheap alternatives |
|---|---|---|
| Memory foam density | 65 kg/m³ | 30-40 kg/m³ |
| U-cut tailbone channel | ✓ Yes | ✗ No |
| Non-slip silicone base | ✓ Yes | Often missing |
| Machine-washable cover | ✓ Yes | Sometimes |
| CertiPUR-US certified | ✓ Yes | Rare |
| Money-back guarantee | 30-day | Often none |