Hi Blast

Quote:
Temperatures would be 60's-70's F.


Is this the low night time temperature or the day time temperature? If its the nightime temperature I wouldn't need either a blanket or Poncho Liner but would use something like a very thin sleeping bag silk liner (if the temperature was in the lower 60s F). A night time temperature from the 50's - 60's F would require the addition of something like a thin merino wool blanket.