Cryosleep modules are for transporting beings in a state of suspended animation using much less life support.
Cryosleep modules are a form of life support. They allow 8 crew but the crew must be in the cryo modules most of the time. Anyone in cryo will need to be placed on one of the cryo tubes at the start of the mission. They cannot act or be attacked directly but they can take damage if the module is hit by weapons fire.
To wake someone is a SCI check versus 20, to wake everyone is a SCI check versus 30. The amount missed by is the number of phases before coming out of cryosleep. The minimal life support conditions cause severe fatigue. When released from cryosleep, the character suffers -3 to all stats including movement (you can still move at least one square.) During the End of Round Bookkeeping, roll an Athletics check versus 11 to reduce the affects. Each success over 11 reduces the penalty by 1.