I think I would buy a square of foam and have some cushioning for the sitting. I know Joanne's sells them thick as I imagine other places may also. Lightening is very important when sewing. I just bought a few wks back one of the lights that have like the 5 or 6 bulbs they were selling for back to school and you can turn on all of them or 2 or 3 depends on what you need. It was $20. but it's worth it. I always say whatever works use it. Sue