http://forums.backpacker.com/eve do a search in the gear forum. My experience with the silver windshield thing is less than desirable in the HH. Since air circulates under the hammock all the time, a standard air mattress will not keep you warm, even in July. (YMMV) Most any insulated air mattress works good. The key word is insulated. The ones below are examples with some in regular length, and some in long. The Exped brand is really only needed in winter camping. I will use an insulated mattress on bottom year round, but in the summer you might just need a very thin bag liner instead of a sleeping bag on top. Here is one example.http://www.rei.com/product/755075 open it up and use as a blanket. In the HH you have better luck using the sleeping bag as a blanket any time. Good prices available here as well. http://www.ems.com/ http://www.sierratradingpost.com/

http://www.rei.com/product/713596, http://www.rei.com/product/713600,
http://www.rei.com/product/720779, http://www.rei.com/product/707993
http://www.rei.com/product/751067