I know I should invest more in my sleeping bag but I am currently in college and don't have the resources I would like.

With that said, what would everyone recommend for a light +20 degree down bag for around $150?

I also understand that these requirements are all trade-offs but hey no harm in asking.
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I can’t rightly say I’ve ever been lost, but I’ve been mighty perplexed for two or three days runnin'

- Davy Crockett