You may be able to sleep on rock ledges, depending on how fast you climb. I think most parties bring a portaledge. There's a small ledge you can swing over to at around pitch 10 or 11, I think. There's also an amazing ledge on top of pitch 17. The ledge on pitch 10 is not very big, though.
We fixed to three and bivy'd on the pitch 10 ledge. Good spot for two people. The cave at 17 is awesome as well. Some of the hauling on the route sucks, so you'll be happy with as little gear as possible.