What is the opinion of Reddit about the
Cushina Coccyx Cushion – Premium Memory Foam Orthopedic Seat Cushion Support for The Relief of Sciatica and Lower Back Pain. Sit in Comfort on Home, Office Chairs and Car Seats?

I bought this: https://www.amazon.com/gp/product/B00FR9R0RA/ref=oh_aui_detailpage_o06_s00?ie=UTF8&psc=1

I like it a lot. Its made with memory foam so at first its super firm and feels like you are sitting super high. But, as your body warms it up it starts to contour to you and becomes more comfortable.

For a while I was forced to use a dining table and hard wood chair when working from home, which was incredibly uncomfortable and painful after a day or two.

I bought this cushion from Amazon: https://www.amazon.co.uk/gp/product/B00FR9R0RA/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

I’m not recommending this specific cushion (although it is good!), but recommending a shaped memory foam cushion, with ‘coccyx’ cutout. That cutout goes at the back of the seat and lets the coccyx bone at the base of your spine sit in it, and therefore takes pressure off it completely.