How to keep sleeping bag dry under a tarp ?

[tammons]

You cant always find the absolute best site and if you dont have a bathtub floor/ground sheet in a prolonged frog choker something will get wet.

Tyvek or other decent material bathtub floor/ground cloth.
You can fold up the corners and glue the house grade tyvek and maybe put a short piece of carbon fiber in the corners so they stand up.
Lighter Tyvek Bivy
Climashield M50 Bag or quilt

I think that is the most bullet proof but not the lightest.

Lightest would be a polycro or Cuben bathtub floor as above, cuben/M50 Bivy or no bivy, and a down or climashield quilt of your choice.

[Just Bill]

I find that not sleeping when it's raining to be the best solution- otherwise- it's really hard to beat a bathtub ground cloth- in the lightest material you can afford.

[Jim Adams]

Site selection is the most important issue then use apiece of tyvek about 7' x 4' that way you have a "shelf" of tyvek to store other items on, to stand on, to sit and cook from....it will prove very handy and not much weight.

[groundsquirrel]

When using a tarp (which I like) - is a normal ground cloth enough to keep your sleeping bag dry in heavy rains?

Does anyone have any very lightweight alternatives?

SOL Escape Bivy - 8oz

[coach lou]

I find that not sleeping when it's raining to be the best solution- otherwise- it's really hard to beat a bathtub ground cloth- in the lightest material you can afford.

pocket_front_m.jpg I'm really digging this floor and will add it to my Hooch when I scrape the cash up!

[Maddog]

I have one of these that I use for hammock camping and the "other type of camping"! http://www.bearpawwd.com/shelters_fl...htub_floor.htm Maddog

[Maddog]

Bad link...sorry! http://www.bearpawwd.com/shelters_fl...tub_floor.html

[coach lou]

Bad link...sorry! http://www.bearpawwd.com/shelters_fl...tub_floor.html

I've seen this also, I like it to, and half the price & weight of the Z-pack floor.

[Chaco Taco]

tyvek, use a contractor grade trash bag as a pack liner and on rainy nights slide into it for extra dryness.

[Wise Old Owl]

+1 or polycro... I have the lightest body bag but I have never needed it

[Dogwood]

On my about 30" X 90" ground cloths that I use under a tarp I simply roll the edges under a bit and that creates a bathtub floor from a flat piece of ground cloth that has about an inch or so height around the edge. I've dome similar with long 2" diam sticks and/or a few small rocks.

[rocketsocks]

pocket_front_m.jpg I'm really digging this floor and will add it to my Hooch when I scrape the cash up!

oh, that would be perfect for the hooch. And then you could fill it with grapes and stomp out some hooch too