sleeping bag help

[Chicken Feathers]

I would think only long distance hikers could answer this question.The question is. I am going to be on the trail for 3 months starting at Springer April 8 I will be using a Marmot helium 15* is that to much or do I need to have someone mail me a 40* bag. I am planning on being on the trail for 3 months or Harpers Ferry

[Dogwood]

Unless you sleep on top or drape the bag over you you might feel a bit too warm in late May, June, and July. If you have the 1/2 zip older version you will have less venting options to add to that Warm situation.

[Blissful]

You'll need the 40 degree later on. Take the other to begin.

[Bearpaw]

Keep the warmer bag until you get past the Mt. Rogers/Grayson Highlands area. The 5000-foot altitude through there can keep the temps quite cold, even into May. After that, the 40 degree bag will likely work fine for you.