I've used liners in the past, and largely given up on them, in part because they don't really add much insulation (at least in my experience). I've used cotton and silk, and never felt like they provided anything close to the 10 degrees that many people claim. If I'm looking to really stretch my sleeping system (taking my 30 degree quilt close to 0) I'll bring one, otherwise it's useless weight, bulk and expense.

Also, if I'm really looking to stretch my sleep system, one of these
https://www.hammockforums.net/forum/...wn-throw-19-95
that actually adds a pretty decent amount of warmth for just over the weight of a liner.

[QUOTE=saddlesores;18420184]no, you don't. but you have mucho free time.

buy a thin, lightweight flat sheet from goodwill for $1.
i assume you have a sewing kit and scissors, if not.....dollar store.


No Sewing kit and scissors!

silk longies for me.

I've only used a silk liner in a mummy bag, although dry cotton PJs are almost as good (with a bit of weight penalty).

I'm a fan of liners. On my recent tour across Europe, I was originally planning to buy an expensive new sleeping bag. Instead, to save money I carried my old sleeping bag and 2 liners: a Sea-to-Summit Thermolite Reactor Plus and a silk liner.

I recommend the Thermolite liner. It is about the size of a coffee mug when rolled up and not much weight. The company claims it adds up to 20F (11C), although that's probably overstating it. My sleeping bag is 20 years old and I've been cold in it before. This time, I spent a number of nights below freezing with the Reactor liner inside and I was never cold. I never found it awkward to use inside my bag.

The silk liner is useful for keeping the sleeping bag clean, and as a stand-alone cover when the weather gets really sweltering, as it did in Croatia/Serbia.

I will continue to carry these 2 liners with me in future, because they give me versatility and warmth at low cost and do not take up much space.

Cheers,
James

[QUOTE=Biketouringhobo;18420918]ok, buy a sewing kit and scissors from the dollar store.
should cost you a buck or two.
they are super useful for making bag liners or
repairing your damaged gear and torn clothing.

heck, you could even sew hand puppets and put on
shows along the way to earn spending money.

Why 2 liners?

The cost of a silk liner is silly. I took a cotton twin bedsheet, folded it in half, cut it smaller and in the shape of my synthetic down military grade sleeping bag, and sewed it up half way on one side. Worked fabulous on my 74 day cross country bike tour. Washed once a week, and it was used every night. And for what its worth, I sleep with nothing on.

Depends on what you value. If you want something lighter and less volume in the pack than a cotton liner, the cost of silk is quite acceptable (they really aren't THAT expensive to begin with).

I use one to protect my Western Mountaineering Ultralite bag, and I find them to be very comfortable also. Silk liners don't really add any noticeable warmth (despite advertising claims), but I also have a merino liner and breathable emergency bivy, which in combination with a down bag, easily add about 10 - 15 degrees celsius warmth when winter camping (like clothing, I subscribe to the layering concept with bags).

I brought a 'F a r t sack' for use in AYH/International Hostels .. they expected you to do so ..

and to keep Bugs out of their Mattresses, you cannot use Your sleeping bag.

100 Mulberry Silk Liner Sleeping BAG Sack Travel Hostel Sleep Sheet GAP Year | eBay $25 USD, weighs 3 oz, and provides around +5ºC to sleeping bag rating.