Frakkin
that's great news, congratulations!
I did two newborns in hot and humids, one in Tanzania and one in Cameroon. A/C is a must, not only for keeping them cool, but I'm telling you they sleep darn well with that a/c white noise going on.
We had the a/c on at a steady 21 deg and they all slept in grobags and all in ones babygros, with a mossie net for extra protection.
I used a fab mossie repellant for babies, errrmmmm it's name escapes me now, a South African one, which came briefly to the UK, otherwise Peaceful Night, another SA one is great, smells nice too!
We used washables, but it was some time ago and I'm sure they have moved on. We used kushies all in ones, but I did use disposables at night. It was terribly difficult getting hold of decent ones that weren't plastic outers. Some of the French brands were fine.
Where are you EA? Do you live in a compound? Is it strange to have guards and panic buttons? It quickly becomes a routine way of life...