I like this one. Construction is similar to another I like which is NOT mission style, but is much simpler, kind of a classy-modern?
For this second one, the main cushion could be a size Twin XL mattress, I think the bolster could be a rolled-up foam mattress overlay . . . Becca would have to sew the cover(s). Construction details are hard to see in the picture, but are generally simpler than the mission couch.