I use...

Go Lite Eden 1 Bivy
http://www.golite.com/Eden-1-P889.aspx

Go Lite UL 1+ Season Quilt
http://www.golite.com/UltraLite-1-Se...ular-P857.aspx

And the most important piece of camping gear IMO (I need comfortable sleep!), a...
Klymit Recon pad
http://www.extremeoutfitters.us/klym...padcoyote.aspx

All of this gear is minimalist as it has to fit in my pack which I strap to my sissy bar.

 

Those cowboy bedrolls may look cool, but a surplus military sleep system with gore-tec bivy bag, off of Ebay, will do you a lot more good cheaper.