I am debating whether to book a room at the hotel, as well. I'll be arriving in F from LAX (A388, having slept much of the 16 hour flight, I am sure) and then departing to JED in F (A388) 11 hours later. I am truly wondering whether just to hang out in the F lounge, shop, etc. - I'll have showered and changed clothes on the aircraft (and can do so again en route to JED, if so desired) so I am really in a quandary. Last year, I booked a hotel at the airport in Cairo, and found it somewhat of a hassle (admittedly, I had to leave the airport and return 12 hours later with my bags). Is the Emirates First Lounge comfortable enough to rest and spend 9 or so hours?