Indoor chairs can afford much nicer cushions with all manner of liner fabrics, like suede, cotton and more. Unlike the cushions of the outdoor reclining Adirondack chair, which consists of waterproof polyfill, indoor chairs can be stuffed with everything from cushy cotton to luxurious memory foam.
For instance, something like cedar will only need to be oiled about once a year. Some woods, especially the teak hardwood, requires almost no maintenance because it makes its own oils which function as well as, or better than, synthetic oils. The risk of over-oiling is the accumulation of unsightly black buildup.