I found some cushions and pillows, on sale, and further discounted on Cartwheel, at my neighborhood Target store. They work very well on the garden bench my son-in-law built late last year.
As you can see in the photo, our sunny days have arrived. I open the curtains in the morning when we first get up, but as the sun travels around, I close them so as to keep the living room cooler. The tree has leafed out and casts a lovely shadow.