potential lounge chair

Hi, i’m new to this forum. i’m not sure if this is the right place for this but here goes.

i recently replaced the legs on my coffee table from someting that ikea had. just looked a lot neater.

I like the old legs and since i have them, figured i’d try to put them to good use.

I was going to build a lounge chair. I have a general design for it in my head but need to jot it down on paper. It’s going to be cushioned and upholstered.

the final product i’m hoping will look a bit like this

ignore the legs. ;p

I’ve scoped out the elastic bands which i’ll be using for the seat and the jute that will be used on the back.

My question has more to do with angles. What angle should the chair back be so it is comfortable and should the seat also be at some sort of incline?

I’m more concerned about the back really.