He kicks off the video by talking you through the requirements for successfully zipping two sleeping bags together which are:
1. The bags are from the same series or brand
2. If the bag has side zippers, you need a right and a left bag
3. The bags need to both have either one or two zippers
Ben first demonstrates how to connect two single zipper Coleman bags together by laying one on top of the other and zipping them together.
Then he shows you how to join a pair of technical right hand and left hand zipper bags together from Sea to Summit, and talks you through the pros and cons of the process – so check it out above for all the details.
0:00 – Intro
0:26 – What to consider
1:33 – Joining single zipper bags
3:00 – Joining left/right zipper bags