Kakisa Lake School, NWT
	Connie Handley's class (grade 1) - Eagleview Elementary School, BC
	Sara C, through epals
	Chennelle White (grade 4) - Tallahassee Community School, NS

Sleeping in space is not like sleeping on earth. On earth, when you go to bed, you lie down on a mattress, close your eyes and, hopefully after counting a few sheep, you fall asleep.

Going to sleep in space is a little like going camping. When it’s time for bed, astronauts take their “sleep restraint” (sleeping bag) and snap it to one of the walls, floor, or ceiling.

Once they are in the sleeping bag they zip themselves in, letting their arms float outside the sleeping bag. They also use a head strap that attaches to the wall with Velcro so that their head doesn't move.

The reason we change positions during sleep is because we feel the force of gravity combined with the pressure of our own body weight pressing down on specific body parts creating a "pressure point". This doesn't happen in space. In microgravity, blood circulation, although affected by the weightless environment is not affected by the weight of the body blocking circulation to a specific body part.

Kale Kuntz (grade 3) - Sidney Street School, SK

For astronauts who are living on the Space Station for longer periods of time, there are what we call sleep stations. These stations are enclosed compartments stacked one on top of each other like bunk beds. Each has its own sleeping bag, pillow, light, air vent, and place to store personal belongings.

When the astronauts are tired, they put their boots and outer clothing into the sleep station's storage area, climb into their sleeping bags and pull up the long zipper on the front of the bag, leaving their arms outside. Then they snap together the straps around their waist to hold them securely in the bunk, and they also slip their hands through loop straps by their side, so their arms don't float up in front of them while they sleep.

Those sleeping in sleep stations are able to close the compartment doors to reduce outside light and have some extra privacy. These sleep bunks are also equipped with a communications station; this allows the mission controllers on earth to talk to the astronauts if a message needs to get through while the astronauts are sleeping.