When camping in areas where mosquito-borne diseases are endemic, what options are there in terms of mosquito nets? The mosquito nets I've seen are meant to be hung above a bed and tucked under the mattress, but would any make sense to use in a tent? If not, what are some options for mosquito (or other insect) protection while sleeping?
There are several types and configurations of mosquito nets that you can use:
Depending on your situation, each has its advantages and disadvantages.
Choosing a net:
Permethrine: After 2 years of living in the tropical rain forest, and suffering the tenacity of mosquitoes and no-see-ums which manage to find their way through any tiny imperfection in the net, I just started treating my nets with Permethrine
This stuff is highly toxic to fish, and insects, so care should be used when applying it - however I have found it to be highly effective in keeping mosquitoes and no-see-ums away from the net so they don't ever find those imperfections.
DEET: Although highly effective as a repellent, prolonged exposure, to high quantities especially in hot sweaty environments, has been linked in some toxicological reports to some ailments. Regardless, I don't much care for doping up before I sleep - so tend to avoid it, though spraying clothes can be a good added measure of protection.
Mosquito Coils: I am not sure the chemical agent involved, or the safety of prolongued inhalation of the smoke, but mosquito coils burnt around the sleeping area reduces the number of insects visiting.
Citronella: Some people swear by citronella and lemongrass, either as an oil applied to the skin for short-term reduction, or a candle that provides a smoke repellent.
Eucalyptus Oil: Provides a short term repellent, and can provide some relief for itching from those bites that already snuck through.
As a final precaution, setting a (controlled) smoky fire burning in the corner of your hut, or tarp will help reduce the number of mosquitoes hanging around throughout the night.
Typically a tent itself will not let mosquitos in, but if you are in a tent that will, like a canvas army tent, hanging nets does a decent job. In some situations a bivy may do better. Some are primarily made of netting and designed specifically for bugs, and some are even shaped to fit standard military cots.
I have had some luck with fabric treatments. Permethrin sprays are available for clothing and some may work on tents or netting. Follow the instructions on the bottle regarding fabric compatibility.