Warm, light, compact sleeping/camping pad?

Which is light, warm, and compact: Closed-cell foam pads, Open-Cell foam pads, air mattresses, or self-inflating pads? I currently have a Therm-A-Rest Ridge Rest, and it’s kinda warm and pretty light, but it’s a bit bulky.

Paige Falk swears by the Big Agnes Insulated Air Core Mummy Pad – Regular $69.95 It’s an award winner! Packs up the size of your Nalgene Bottle.

http://www.rei.com/online/store/ProductDisplay?storeId=8000&catalogId=40000008000&productId=47994878&parent_category_rn=40001452

http://paigefalk.smugmug.com/