It's hot!

Woot Spanky!!!  Come home early dude!!

I would say realistically it better equates to Homer sitting in his underwear on a bag of frozen peas.

When it's very hot out and you do not have air conditioning, it's difficult to fall asleep. You can toss and turn to no avail. All this movement will make you even hotter than you already are, but there are ways to get cool and remain cool long enough for you to fall asleep.
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Methods Which Mimic Air Conditioning
Try the ice towel method. Hang a wet towel holding ice cubes from two chairs. Point a fan at the towel and at you in bed. The melting ice will wet and chill the towel and the fan will blow that cold air on you. Place a container under the towel to catch the melting ice water. You can use a thread to connect the bottom of the towel with the container to avoid the annoying dripping sound.
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Props to Cool the Bed
Or, during an extreme heat wave, take a light t-shirt, wet it, wring it out and wear it. Evaporation from the shirt will help to keep you cool enough to sleep for a few hours. This is a very simple and environment friendly method of staying cool.
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Cool Sleeping Positions
   1. Sleep in a 'spread eagle' position, so heat doesn't gather around you and think cool thoughts.
   2. Sleep nude Note that many people disagree about the effectiveness of this method. Some claim it cools you down. Others claim that it makes your sweat stay on you or your bedsheets and makes you less comfortable.
   3. Sleep downstairs. Warm air rises, so it is cooler downstairs.