Use of a sleeping bag liner to add warmth

[Swehanger]

Spirits of vietnam is great to deal with, fast shipping and cheap price, bought 3 liners last year and use them a lot.
I always have one in my pack.

[lilprincess]

I take a cheap fleece blanket at Walmart and fold it in half a sew it across the bottom and 1/3 way up the side. Adds 20* for the boys but only 10* for me because I'm always cold. No idea what the weight is, but it's pretty light.

[hawghangar]

so are you guys with the silk liners seeing any temperature boost in cold weather? I have one, but really intended to use it as a TQ during hot summer nights - haven't tried it as a down TQ liner.

[fallkniven]

so are you guys with the silk liners seeing any temperature boost in cold weather? I have one, but really intended to use it as a TQ during hot summer nights - haven't tried it as a down TQ liner.

I too mostly got it for warmer nights, but wanted to give it a go in the cold. It does in fact help in the cold, used it in the negatives with a 0* tq and 20*uq. It helped because I was fully in a bag, instead of just wrapped with a quilt. I just picked up a vapor barrier liner to do the same thing, only better. I still will be using my silk liner for spring/summer/fall months, and will be sticking with the vapor barrier one for the winter.

[goanywhere]

I have the extreme reactor liner and it doesn't exactly add 20*, that is a median value that they've decided was representative of the extra comfort you may experience when using it. It differs between each user. I use mine every time I hang - summer/winter, etc. It is a very versatile item, albeit a bit heavy for what its worth.
Getting into/out of it can be a challenge sometimes, but nothing that would ever change my mind about using it.
I'd say go for it, just try to test it out first before you go, so you know what it will do for you

I have just received one of these and tested it tonight inside a SOL Escape Bivvy. For me it was amazingly warm. I'm a cold sleeper and I reckon it added about 10 deg C at least (but that's hard to gauge with any certainty). So far very happy with this item. I'm heading off for a kayak camping trip this weekend and travelling very light. I'll report on the results when I get back

[Minecraft]

If you use a sleeping bag it helps if you put a pad or a windshield reflector under it.
Another thing you can do to stay warm is to get or make a down overquilt.