Originally Posted by ol_mike
Single Wall, Contrail- lots of condensation .

That's why I was asking. Your problem is your tent, not your bag. You really don't need a VBL in the temps you describe, but what you should be thinking about in wet/humid conditions is a double wall tent.

“Perfection is Achieved Not When There Is Nothing More to Add, But When There Is Nothing Left to Take Away” Antoine de Saint-Exupery