It’s 5:30AM. I drift slowly up toward consciousness as my iPhone alarm pushes gently through the sleep-heavy haze. The A/C and ceiling fan are purring. I clutch the sheet and pull it tight hoping to catch another minute of sleep before easing out of bed. Even at 70°F it feels chilly as I peel the sheet back and step onto the cool tile floor. In four years I’ve never seen the outside temperature fall below 75°. Saigon is hot. There are two seasons – hot and dry/hot and wet – both heavy with humidity.