I had no issues spending (deliberately) 12 hours in transit in the F class lounge in Dubai in Concourse A. It is an extraordinary experience and you should enjoy every moment of it. You can enjoy complimentary sleeping sofas, showers, food, business center, and a 15 minutes massage session ^

What more can you ask for? Why would you pay for a hotel room when you can sleep and eat for free? I don't understand you people