I have 2 blue Thermarest 3/4 length pads, they both weigh about 15 oz. I will sell you one if you like.
One was patched, 15.5 oz, works fine, $10.00 + shipping = maybe $17.00
One has bubble in it where seperated from inside padding. 15.1 oz, $3.00 to cover Paypal etc + shipping = $10.00