u/BrownDrinker

I’m looking at sleeping bags and landed on the Mont Helium 450. I found it for a good price but they only have the XL size available. I’m 180cm, will the XL make that much of a difference? Will I be swimming in it? Alternatively if I go for the Mont helium 600 will it run too warm? I’m mainly looking to use it for around Australia; Blue Mountains, Kosciuszko, Tasmania. Thanks in advance!

Edit: This might be the wrong place to ask as UL isn’t a deal breaker for me, this subreddit just popped up when I was looking at other questions about gear. ALSO, this will be my first sleeping bag.