Thats pretty darn close to the one I saw. It was actually in a Art Gallery but they were closed so that was as close as I could get. I guess it was bike week for them cause they had lots of crazy bikes inside which I just could not get any pics of.
It's hard to tell from the pic but it was at least 5' long and had air tires. And you can see you would enter from the top. Do not know if it was really for sleeping or just a cool way to haul your cargo. Would be great for my dog's