DrSchollJust out of interest... why wouldn't you think a 198cm is long enough for your 180cm height? When it's really cold, I sometimes huddle further down the bag so that my face is not exposed - but that is in exceptional circumstances. With this particular bag, you might want a better fit in order to better use the footbox's 'self sealing' ventilation system.
flyin2flyoutActually I rather thought it would fit but just wanted to make sure (and to be franck posted at work so I could not check on my present sleeping bag ;-)
Meanwhile I found the info on SierraDesign website, the fit should be perfect :
REGULAR
EN Limit Temp Rating: 2F / -17C
EN Comfort Temp Rating: 15F / -9C
Fill Weight: 26 oz / 736 g
Minimum Weight: 2 lb 8 oz / 1.14 kg
Fits Up To: 6' 0" / 183 cm
Length: 78in / 198 cm
So the Nitro 800 0 Degree is ordered :-)
Thanks for your answers.