I'm bracing myself for a rather long trip: a 3 hour flight, 8 hour layover, and then a 16 hour flight. Also, I will be getting up around 4am that morning. So it will be really helpful if I can find a place to take a nap.

This question contains some information about AA Admirals club. However, since I'm travelling with the United Airlines, I am thinking about purchasing a one-day-pass for the United Club (Terminal 1). Will I be able to take a decent nap in the United Club?