I just got a shipment from Goose Feet Gear in the mail.
Those red things in the photo are the down socks. They weigh 2.7 ounces.
The black things are waterproof over-booties. They are a shell for the down socks so I can wear the socks around camp. They weigh 2 ounces.
The pillow is very small and would not be very useful if I was sleeping on the ground but in a hammock I think it will be great. It only weights 1.25 ounces.
I will be camping on Mt. Hood this weekend so I should have some comments on how these items performed next week. The socks and over-booties are a luxury item for sure but my feet will be very wet and cold while hiking during the day so it will be nice to have these to look forward to.