I'm leaving for my through hike the first week in April and am wondering what kind of sleeping bag I should bring. Typically, I sleep relatively cold. I know I want a down bag, but am torn between a 15 degree bag or a 0 degree bag. A 15 degree bag is more versatile, but I'm worried I might be cold. I was thinking perhaps buying a 15 degree bag and pairing it with a liner. Any thoughts would be much appreciated!

Cheers,
Cora