Was this chair in Han Solo’s sky house?
Yep. It even has it’s own article;
http://starwars.wikia.com/wiki/Most_comfortable_chair_ever_designed
(So, is this from a well known Legends story? I’m a bit surprised that you immediately made that connection.)
It’s from The Glove of Darth Vader, a SW story for kids so bad it’s amazing. The Sky House is infamous among certain quarters of fandom.
And, for the record, I was actually kidding. I didn’t realize the Most Comfortable Chair Ever Designed™ was in the Sky House - though now you mention it, I should’ve made the connection in earnest from the hyperbolic description alone.