oh ya ..... and just while daydreaming.....
If I ever manage to have Gates or Oprah run me over....
I'll blow the high 6 figure cost and get a bag made entirely of Aerogel.
For those not familiar... only known solid that is lighter than air. And the
insulating properties are crazy. A sleeping bag would only weigh whatever
fabric you used to contain the aerogel + a zipper.
no wait ... screw that..... I'd get an Aerogel Pea-pod for the hammock! ...Turk