Sleeping Bag Liner?

[MattEastman]

So my 20 degree sleeping bag is more like a 30 degree bag now. I don't really want to spend the money on a new bag this year so I have been looking at a sleeping bag liner. I've looked at several but just not sure if its worth it, or maybe I should just buy a new bag?

I've been considering the Sea To Summit Thermolite Reactor...........?

Have any of you used a bag liner to add more warmth to your sleep system? Whats your thoughts on bag liners?

 

[slim9300]

They won't add nearly 10 degrees of warmth unless you carry something that weighs more than 12 ounces and that is not worth it IMHO. I use the Sea To Summit Cotton / Silk and it's great for keeping my down bag clean (I never clean it, nor do I want to) and may add a few degrees of warmth. It weighs in at 6 ounces and is square, not mummy. I would suggest just wearing a set of long underwear and your clothes if you really don't want to purchase a new bag this year. That should add 10 degrees pretty easily.

Your problem with being cold may also be related to your pad. Which one are you using?

 

[RosinBag]

I agree with slim, if you don't want to buy new, layer your clothing to make it work. If using it in 20 degree weather I would presume you are taking a base layer which would be fine to sleep in. If no base layer, I would buy a new bag, as I don't think the liners offer much more than an easy way to clean your bag.

 

[bearguide]

if you are still cold leave all your stuff on

 

[Matt Cashell]

Some people swear by those S2S reactor liners. I haven't tried one myself.

 

[stephen b]

All good suggestions above.

I have used quite a bit a Cocoon silk liner- weighs about 4.5 oz and is simply luxurious to sleep in. Adds about 5-7 deg.

Another thought for increased warmth that you might think about is- a light weight sleeping bag bivy/ cover. The Ti- goat ones weigh only about 7 oz if that and it would both add warmth and would add another dimension for extra bag protection from the elements.

I have used a Black Diamond winter bag cover in really cold weather and in a floorless shelter on snow and it definitely helped ^ the bags temp.