Two yards of fleece material from the fabric store makes a nice compact and inexpensive blanket for around $16. Less if you find a remnant or close-out pattern.

If you get down to Peru or neighboring South American countries, you can find alpaca-wool blankets for $15-20 each. Extremely lightweight but very warm and comfortable.
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2010 Jeep JKU Rubicon | 35" KM2 & 4" Lift | Skids | Winch | Recovery Gear | More ...
'13 Wheeling: 8 Camping: 6 | "The trail was rated 5+ and our rigs were -1" -Evan@LIORClub