20" Gel Seat Cushion for Long Sitting Pressure Relief(Jumbo&Thick) - Wheelchair Cushion for Pressure Sores - Back, Sciatica & Tailbone Pain Relief Cushion- Non-Slip Butt Pillow for Office, Home, Car

I ordered this one https://www.amazon.com/dp/B0DT4RMFVK . I bought another seat cover to go over it and help keep it in place. It almost covers the full area but is lacking on the sides. It's OK-ish. Better than the original cushion but the grid matrix under my tush feels odd. Searching for 'bariatric seat cushion' gives me wider cushions but are not at long. I ordered one just to try it.

I bought the Helishy 20" gel seat cushion https://www.amazon.com/dp/B0DT4RMFVK. It's the only one I could find that comes close to the total area of the chair cushion. I wish it were 2 inches wider in each side because it feels like I'm slightly losing total surface area that my tush comes into contact with on each side. I got this chair seat cover to help keep it in place https://www.amazon.com/dp/B07G3831KV. With both of them together, it's definitely more tolerable, but I would not say it is a game changer. I just found out that there are even larger sizes if you look for 'bariatric seat cushion' on Amazon. I ordered one to see if that feels better than the gel one. Testing continues.