This looks like a custom slipcover, but you may be interested in this piece that I spotted on eBay with similar lines: http://cgi.ebay.com/Slipcovered-Shelter-Arm-Sofa-Chair-And-Half-Ottoman-/250682841548?pt=Sofas_Loveseats_Chaises&var=&hash=item800f5c1126
Higher sofa arms for office? Pull out bed?
This room would require some rearranging. A nudge to the sofa and the tree could take prime window real estate, though.
The linen and black combination in this room comes off as both comfortable and current, and the subway wall art above the sofa was a big trend in 2010.
covered sofa from Cisco Brothers, a custom made cocktail table and vintage sugar molds, give it a little bit of an industrial edge while keeping it comfortable.