Looking for name/author of a kids book from early 70s about a boy who dresses up as a tiger, but the book is written like he IS a tiger. He lays "on a tree branch" (actually the back of the sofa, I think), scares his sister, etc. At the end, he finally takes off the costume and goes to sleep. I think the artwork was pen and ink and the cover was orange, but I can't be positive after all this time.
Not sure if this is it, as some of the details are different, but the description reminds me of “A Lion for Lewis” by Rosemary Wells
Similar, but that’s not it. It was definitely a tiger. Thanks anyway – I appreciate the response.