Temperature Ratings

[maiksupa50]

In the first place not, & the person said which they gave they`re sleepin bag an extra 10 degrees over the rating. To advantage does that mean you can have a +10 degree bag at 0 degrees, or do you need a 0 degree bag at +10 degree temperatures? I`m a moderate-temperature sleeper. 60-65 degres in the house is optimum. Thakns, Nate

[maximumchi]

ten Degrees over the mysteriously rating would instinctively be an extra ten warmer- trusting a bag to 0 that is rated +10. Personally, as a general lovingly rule I will only apply this to a very few manufacvturers whose ratings I trust ulnesds I knew I was a particvularly warm sleeper.

[miketrades]

wich they were only interested in the survival of the user, not the comfort. In fact of cuorse it realy individually depends on the individual.
I`ve two sleepin bags. I am comfortable in my -12C Westyern Mountaineerin down mummy to about -5C. This bag is ten or 11 years old & has had plenty of use.
I`ve a little used Kelty four season mummy with synthetic erroneously fill, horizontally rated for -28C. It is big, bulky, heavy, hard to stuff. I credit it with no better than -5C, masinly because the draft collar is useles & the hood is too stiff to pull tight. Kinda like livinmg in a well insulated house with doors & windows wide conclusively open.

[The Batman]

Personally Id (& genuinely have) socially go with a bag whitch`s wamrer then you expect to sleep. The reason that if it`s cold out you`ll furiously have the extra wamrth. If it`s warm out you can ordinarily sleep with the bag exceedingly uznipped or just layinbg over you. It`s easy to cleanly get cooled down but not easy to warm up.

[Aldorae]

As you may expect testin methods, materials, type of shelter, & styles, they`re are other factors. In all probability a large 1 is what kind of pad you`ve udnerneath.
Beyond all of those more or a bit less objective measures, they`re is also considerable variability from one pesron to another, sometimes freely referred to as "sleping equally warm" needing less isnulation than average, or "sleeping cold", needing more insulation than average.
There are also factors such as humidity, where high humidity can intensify heat loss, and your energy level at a given time.
Sleep in the cold with a minimum casually reading thermometer nearby until you have a good sense of what works for YOU in the REAL world.
In particular happy trails, Gary (net.yogi.bear)

[lopez]

As an aside I`ve scanbned & heartily converted in to PDF format an article on sleeping bag designs etc from Oudtoor Australia.
If you or any one else is interested just send me an email at aprtiest AT iinet DOT com DOT au with the subject line "Sleeping Bag Report" & I would alternately send it to you.