I've never really gone backpacking before or anything - but there is one thing I have always wondered, and I figured this would be a good place to come ask it.

When you all are backpacking, where do you keep your sleeping bag? Is it on the inside of your pack or strapped to the outside?

Do you put your sleeping bag in some sort of sack with straps so you can make it smaller?

I do realize that backcountry sleeping bags are a lot smaller than normal sleeping bags, but it still seems to me like you would have trouble fitting even small sleeping bags into the multi-day backpacks that I have seen.

I have this sleeping bag:

http://www.kelty.com/kelty/products.php?type=1&cat=68&id=66

Would something of that size roll up and fit into a backpacking pack or would it take some sort of super special ultra-lite sleeping bag to actually be small enough to fit easily into a backpack?

Thanks for the info!