As The Lord Poncho says the Defence 4 is a lovely bag - I was in mine last night and toasty throughout! I also have the Tropen summer bag which is a very good sleeping bag in its' own right for warmer temps and makes for a truly arctic level system when used as an inner for the Defence 4. The compression stuff sacks they come with are very good indeed at getting the bags down to a pretty small size for a large synthetic fill. One correction though, they come in 185 and 200 sizes, not 200/220, and at 6'5'' I am very comfortable in the 200 size versions.
He either fears his fate too much,
Or his deserts are small,
Who dares not put it to the touch,
To win or lose it all.