Compressing your sleeping bag when you are done with it does not have to take a lot of time. Not when you have a Snakey compression sack to count on. It will be available in Python, Boa, and Anaconda versions for large, small, and mid-size sleeping bags. The Snakey does not weigh a whole lot and can work with natural or synthetic down-filled sleeping bags.
The above video shows the Snakey in action. Find out more information about it on Kickstarter.