>>2722378one more recommendation, lookup /read up the standard used for the temp rating. it's gotten better but the temperature rating used to be extremely misleading. rated for 5°c meant SURVIVAL aka you dont die at 5 from hypothermia... and not for comfort at 5°c . Sleeping rating meant sleep possible but not comfortable/restful with for example curled up fetus position
> the upper limit is the highest temperature at which a 'standard' adult man can have a comfortable night's sleep without excess sweating.
> the comfort rating is based on a 'standard' adult woman having a comfortable night's sleep.
> the lower limit is based on the lowest temperature at which a 'standard' adult man is deemed to be able to have a comfortable night's sleep.
> the extreme rating is a survival-only rating for a 'standard' adult man. This is an extreme survival rating only and it is not advisable to rely on this rating for general use.
