I'd HIGHLY suggest grabbing yourself 4 polypro blankets. They are MUCH warmer than standard wool blankets, less subject to mildew concerns (although any long term storage
in the tropics begs for any blankets to be stored in a vacuum bag imo), and they take up less space. They are made of the same moisture wicking material that expedition weight long thermal underwear are made of and are extremely breathable, wind
resistent (perfect to wrap around you on a night watch that doesn't necessarily beg for more clothing), the all important - snugglable (yeah I know; not a word).
ALL WEATHER BLANKETS - $13.55 : THERMAL UNDERWEAR and Outdoor Gear for Men, Women, and Children
Being an avid hot springer, I can swear by a body chamois instead of a towel as well. They act on the same principle as a chamois for your car. Much quicker drying, and you simply wring out the water
. They store in a small 3 inch diameter tube, so can be easily kept anywhere and unlike a wool towel, is always ready for the next use (no waiting for it to dry out, since it's always effectively dry.) I can't reccomend these enough!
The Sammy Towel - Chamois Towels