is there a way to make a sleeping bag slightly warmer?

[Harry May]

is there a way to make a sleeping bag slightly warmer?

 

[Mike Brown]

Yes, use a sleeping bag liner it can make a big difference. Coleman has some great ones!

They also stop you from sweating into the actual sleeping bag which keeps it cleaner for longer

 

[Scott Macon]

I've heard sleeping in your underwear is a good way to maximize a sleeping bags warm.

 

[Sam Mills]

Sleeping bag liner as mentioned above mate. They work great when it comes to getting some extra heat out of it