If your flight leaves first thing in the morning then don't bother! I travelled from Yorkshire to get my flight to Barcelona at 7 in the morning and got there at 1am had to "sleep" in the cold train station until it re-opened thankfully I wasn't the only person as there was about 10 of us. Last train from Southend to the airport was around 1am and vice versa so had no chance of going back into London for a few hours to pass time. There should be something for passengers who are catching flights first thing as not everyone drives and people come from far to catch early morning flights. Was ok once I got in speedy check in and going through security was fast too. Had a nice sleep on the plane but I wouldn't travel from there again because of the time it takes travelling and cost etc.