Everyone knows that there is nothing more frustrating than trying to sleep on a sweltering night. The Guardian's Jon Henley has come up with some tips to help beat the heat.
Apologies, first, if this answer is not up to the usual high standard. It's hard to concentrate after a week of four hours' sleep a night. And it takes only a couple of degrees: anything much above 18C and half of will us will spend the night tossing and turning.
So how to maximise your chances of a good night's kip in such conditions? The following are culled from a variety of sources - some expert, some I suspect not. But somebody swears by each and every one of them. Read more