Irrelevant
Well-known member
Wow thanks for all the recommendations. I simply use the two bag system because that's what I have. At some point I'll upgrade but for now I just deal with it. The 30 bag is from 20 years ago and definitely isn't a 30 anymore. However, I have an even older 30 from the 80s, and it still has enough loft to be useful for summer. So I know that the temp reduction allows over time. I store all my bags in there storage bags, it's not quite as good as hung up, but I simply don't have the space to hang. And I currently use two pads, z lite and BA insulted q core deluxe, combined in at like 5-6 R, but I can tell i need more. Living in WA, extreme temps really aren't something I have to deal with that often, so that kind of gear never floats to the top of the "buy" list.some thought on your set up:
1. sleeping bags loose loft over the years. Down faster than Synthetic. Especially if when stored off-season you have them in their StuffSack. so that 30F bag from 5-10 years ago may now be closer to 40F, and that 0F is more like 10-15F. materials break down, no way around it. If you have the space, best thing to do when not using your sleeping bags is to hang them up so they can fully loft up. Also make sure you wash your bags occasionally, typically when i start seeing lots of grease marks around the hood area/feet from your body, that means Down is now clumpy and oily, it once again wont Loft up to its full potential. there are plenty of special Down wash products and i highly recommend you use them. it may breathe some life into your old bags. but ultimately if they are 7+ years old, accept the fact that they are no longer the temp rating they once were when new. Also: were those EN ratings or just a temp rating listed by manufacturer? entry price point bags typically dont get EN/ISO rating, so those may not even truly be 30F & 0F as you thought.
2. doubling up on sleeping bags works, but not to a full 100% extend you may be thinking. especially since you said your bags are tight and tough to slide inside each other. When doubled up your Inner bag now CANNOT fully LOFT up because it's being restricted/squeezes on the outside by your other bag, and when Down/Synthetic is not lofted to its full potential, once again it is not providing you with its full Temp rating benefit. **(think of it like wearing a DOWN Jacket under a fitted first layer, it wont loft and therefore wont fully work to its pottential)
3. If you still decide to go the Double up route, i would suggest trying to put your 0F on the outside instead of inside, at least it'll have room to Loft Up.
4. Sleeping Pads - if you're that cold of sleeper perhaps you do need 2 pads, but i will say that technology has come a long way, and as others have stated: a THermarest XTherm *(their 4 season R.value of 7ish) should be more than enough. people take these to sleep on snow and they're OK.
again: LOng Term storage in a stuff sack *(especially if you live in a humid environment) is probably the worst thing you can do for your sleeping bag. Most quality DOWN Bags often come with Storage Sack *(big MESH bag, similar in size to a Deer Game Bag) that allows it to breeze and has just enough room for DOWN to loft up somewhat and not be compressed like it would in a stuff sack.
hope this helps.