They can sleep in whatever they want just as women can.
Malawi is a hot country and men do wear shorts there.
There sure are! Get any shorts that are labeled as wrinkle-free and they should travel great.
no
Yes! And they should. With shorts, dresses and jeans. Do it.
Cool borad shorts. Never a speedo!
Yes
Teachers are expected to dress professionally. Shorts are not considered professional. In some schools, long shorts are allowed. This is usually in southern climates.
It should be fairly easy for you to find some men's spandex running shorts online. I have found that they are available on sites such as Amazon, EBay, Sears, Footlocker and SwimOutlet
They should roughly sleep around 10 hours per day.
All sorts of companies make shorts for men, ranging from denim shorts to athletic shorts. Some brands to try include Nike, Old Navy, The Gap, and American Eagle.
mens medium
Zappos.com is one online retailer that sells men's spandex running shorts. The other places I would recommend taking a look at would be either Amazon or Ebay or another specialty sports retailer.