Sleeping bag or Down Jacket & trousers?

bags are a lot warmer for the weight. a lot less surface area to loose heat through. down pants will get clammy against your skin and with less air getting inside them

"down pants will get clammy against your skin and with less air getting inside them" I would have that happen and many a male might too experience the clamminess. It's rare that i have to zip up a sleeping bag. My partner, Kathryn does not sweat much. Like many females, will experience less circulation to extremities. She experiences cold urticaria. It is often her preference to use the down pants and top. That has a lot to do with the versatility of the suit. It can be worn around camp a bit easier than the sleeping bag.

Regarding clammy-ness... I would never use down garment against bare skin, I would always recommend a lightweight long sleeve shirt and pants, allows you to more more freely and keeps your down much cleaner and therefore warmer. In my view, wearing a down hat and down socks will make a huge difference when sleeping, more so than anything else (outside a sleeping pad)

Regarding the clamminess I would defiantly wear some other layer under the down items. I am also thinking that if I am camping alone id feel a little bit more safe if I could move quicker and not have to get out of a sleeping bag (maybe I sound ridiculous there) but I am looking for overall warmth, comfort and size/weight ratio mainly. I might just buy some down trousers and give it a go before going off for a few weeks into the wilderness. Thanks for your replies too, greatly appreciated. Yotis.

the clamminess comes fro lack of air circulating under a warm insulation layer, another layer doesnt solve that, a sleeping back is better at solving that, thats why people use them

An inner layer doesn't stop the clammieness, it just gives the moisture somewhere to go that hopefully doesn't feel as clammy during the night and that you can take off in the morning.

The nature of your adventure will determine exactly what kind of sleeping bag you need to buy. Factors like you need to consider: Comfort rating (look for comfort rating, most sellers mention extreme rating) * Breathability (a bag's ability to keep you warm without getting sweat) * Size (most bags come with regular/long sizes) * Weight (consider weight only if you go hiking/biking, since top-quality bags like *Western Mountaneering Summerlite are supe exprensive) * Shape (idk, I have never used something but hooded mummy) * Construction materials (I'd better say fill materials - goose/duck down are more expensive but weight less. Synthetic bags are cheaper option. There are also dri-down bags that kinda sythetic down, which is also an intriguing and more affordable choice (but I haven't tested such sleeping bag yet) All come together to determine how a particular model will perform under certain circumstances. Choosing the best backpacking sleeping bag for you, then, is all about knowing what kind of conditions you will be facing. [https://wildproofgear.com/best-ultralight-sleeping-bag/](https://wildproofgear.com/best-ultralight-sleeping-bag/) I have no idea how a jacket can change a sleeping bag in the outdoors. I would purchase both if I were you :D