1. Must be 4 season.\n2. Must be able to fit in ALICE pack.\n3. Must be able to accomodate my long legs (I'm 6'4").\n4. MUST NOT BE TOO EXPENSIVE.\n\nThis is what I'm looking at right now:\n\nOutdoor Research Alpine Bivy\nMEC Hybrid Sleeping Bag -20C\n\nCombined price of both is $371. This is roughly the price range I'm trying to stay within. I'm willing to go a little higher if the benefits are worth it, but not too much higher.\n\nLet's hear your input!