A caboose is a manned North American rail transport vehicle coupled at the end of a freight train. Cabooses provided shelter for crew at the end of a train, who were required for switching and shunting, and to keep a lookout for load shifting, damage to equipment and cargo, or overheating axles (hot boxes).
The average person has about 3 to 5 dreams per night, but some may have up to 7 dreams in one night. The dreams tend to last longer as the night progresses. During a full 8-hour night sleep, two hours of it is spent dreaming. It is not at all unusual for a person to have more than one dream per night.