Backpack hunting gear

[farmerpk]

Wondering if anyone has a good recommendation for a light weight sleeping bag.

I am considering running a bag that is rated for warmer temps and then adding a liner for cooler hunts.

Does anyone have experience with liners? iE do they really boost the ratings as much as they advertise?

I'm well aware how important a good bag is on a sheep hunt, but also have a budget. Can a person get away with a high quality light weight bag with a liner, or do you bite the bullet and just buy two good bags.

Any experience would be helpful