Sleeping Bag Cover Would Cabela's Alaskan Guide Model Mummy Sleeping Bag Fit In The Army's Modular Sleep System Bivy Cover?

Would Cabela's Alaskan Guide Model Mummy Sleeping Bag fit in the army's Modular Sleep System Bivy Cover? - sleeping bag cover

In going to Afghanistan and you want something a little superior to what the army to give me a sleeping bag and I want to fit into the situation in the camp camo blanket 85 "x 28" x 35 "Guide to Alaska. Cabela's Model Mummy Bag measures 34 "x 82"