With a silnylon based bivy bag (Borah gear) we've discovered that even a slight incline leads to amusing nighttime movement. What's best to apply to the base of the sleeping mats (Exped Synmat) to limit this?

Seam grip worked well for me! Just put a bunch of small spots rather than strips all over the base of the mat.

whitestone wrote:With a silnylon based bivy bag (Borah gear) we've discovered that even a slight incline leads to amusing nighttime movement. What's best to apply to the base of the sleeping mats (Exped Synmat) to limit this?

Seam grip or bathroom silicon sealer works well - you can thin it down before putting it on

I still haven't for round to doing this to mine!

Glue inverted drawing pins to it