In my own personal searches, I found a 15º 800 goose fill sleeping bag for under $150. I purchased it, used it on a Europe trip, and now give me thoughts and feedback on it.
Link to video about Understanding Fill Weight & Fill Power: https://youtu.be/vW-bFI9ExyA
Link to video on my Mountain Hardwear Lamina Z Torch 0º Sleeping Bag Review: https://youtu.be/-vkYTcLurbc
To learn more about me and my work, check out my website at http://www.wahlmanphotography.com