Time Out says
Guestrooms in the tower would be interesting, but all the Stratosphere’s sleeping quarters are in separate buildings below. Some are in the original Vegas World mid-rise; a more recent tower brought the total to 2,444 rooms and suites. There are an overwhelming 13 different types of room, from the smallish standard rooms to the massive "premier suites". On the eighth floor, there’s a big pool and recreation deck.
2000 S Las Vegas Blvd