This is maybe old news to other people, but it’s relatively new news to me: there’s a new yoga room at SFO, and there’s an airside (i.e. post-security) connector between Terminal 1 (gates 40-48) and Terminal 2. The yoga room is located along this corridor.
To get to the airside connector from Terminal 2, just look to the right immediately after you clear security. From Terminal 1, look left immediately after you clear the security checkpoint for gates 40-48.
The connector itself is a nice place to plane watch. Great views of SFO. The yoga room is about halfway down the connector.
It’s a basic room, but they have mats, pillows, bolsters, and foam rollers. I tried using the old yoga room once, but there were a couple of people trying to sleep in there, so I felt a little awkward. This time around, the room was empty, perhaps because I think it’s not very obvious that it exists.
The best part about the airside connector, though, is that you can now potentially use the SFO Admirals Club if you’re flying US Airways. The Admirals Club is in Terminal 2 while US Airways flies out of Terminal 1. Before the connector, you would have to clear security twice if you wanted to use the Admirals Club before your US Airways flight, but now it’s possible to clear security in T1, walk to T2 for the Admirals Club, and walk back to T1 for your flight. But I don’t think it’s guaranteed that your US Airways flight will leave out of one of the accessible Terminal 1 gates, so it’s possible that you’ll still be stuck in Terminal 1.