I am flying IAH-LHR on the 777 and am mulling between club world and first for me and my wife. We usually fly economy but I have a lot of miles now so I can splurge a bit. Is it worth the extra miles to go to first instead of Club World? I hear mixed reviews about both products, however as a person who flies economy 99% of the time either would be a big upgrade. Also, as a couple we would be sitting together and for an overnight flight (departure time 825 PM) our #1 concern is sleep so I'm wondering if we would fully enjoy first for a non day flight. Any help would be appreciated. THanks.