You might look into the Montbell Super Stretch bags...... I hate constricting mummy bags (I'm a side sleeper and need to keep rotating from side to side and I throw a small pillow between legs or under side of belly).... I've have a couple montbell UL stretch bags and they are great... stretch out when you need to move yet softly cuddle you to keep you comfy and warm with the soft down. And they are ultralight and pack small. Not constricting at all.... best of both worlds. Check em out. (i'm 6'2 250(ugh) and use a long)...