Since the Native American tipi dwellers sat on the floor rather than our conventional chairs, they made "back-rests" to lean against. Made of many short, straight pieces of willow, they were very comfortable and easily moved about the tipi.
We have an excellent "backrest chair" available. It has an internal aluminum frame, a 2-1/4" thick contoured foam sitting pad and is covered with a heavy duty cotton duck canvas. The canvas is a light tan in color. The back support is designed to cradle the shape of your back when you lean back against it. This very practical interpretation of the Native American back-rest is very comfortable. We use them in our own tipis. They are also ideal seating for large numbers of people in meetings or council gatherings in the tipi. $39 each.