Just like any exercise your body will adapt and you will begin to easily sit on a wedge and experience its benefits. As you sit more upright you will also reduce excess strain on your upper back too.
Performance Health Seat Wedge- 11 Degrees, Wedge Cushion for Cars and Office Chairs for Back Discomfort, Lumbar Support, Sciatica Relief, and Improved Posture, 36 x 36 x 10 cm
ComfyWise 11 Degree Wedge Pillow Support Cushion - High Density Foam Seat Cushion for Back Support in Office Chair and Car Seat - Comfortable Wedge Pillow for Improved Posture and Comfort (Black)
Memory Foam Putnams 11 Degree Sitting Seat Wedge (3 3/4" at back) Fixing Strap ✔
11 Degree Coccyx Cut Out Sitting Wedge Cushion - Office Chair Car Seat UK Made
Memory Foam 11 Degree Coccyx Cut Out Wedge Cushion Pillow Office Car Bucket Seat
11 Degree Seat Wedge High Density Foam Cushion Car Offic Chair Back Support