The original “Nest” was specifically designed for the Hennessy Ultralite Backpacker A-sym. However, the design of the suspension system and the Velcro closure on the slit allows it to fit all asymmetric models of the HH and virtually all other hammocks. Subsequent quilt models are the same size and use the same JRB suspension system so they work on all hammocks.
We do not have a validated temperature rating from formal testing.
Based on the chart below, our three season models are 30° quilts. They are baffled to 2 inches, but between the baffles the down lofts to approximately 2.5 inches. We have used them as under quilts comfortably wearing only skivvies in the mid 40s and into the high 20s and low 30s wearing fleece long johns. We’ve had an evaluation from another customer who was comfortable in the mid 30s. It should be noted that although they are baffled to 2 inches, the down can be shaken to the center of the quilt to achieve 2-3 inches of loft under your body.
Similarly, our winter models are 10° quilts. They are baffled to 3 inches, and between the baffles the down lofts to approximately 3.5 inches.
Well, we were the first company to make under quilts commercially available. In doing our research before making our first ones all the do-it-yourself examples we could find on the internet were side to side baffles. All the sleeping bags in the stores were the same way. It didn’t even occur to us to do it differently.
That said, we think we got it right. With the baffles running side to side you can shift the down to the center of the quilt if needed. And down naturally settles due to gravity. But in settling it only makes the quilt better. When laying in a hammock with an under quilt attached the outer 6 or 8 inches of each side are normally above your body doing little to keep you warm. If the quilt has lengthwise baffles the down stays in the outer baffles and is of little value. That’s how we rationalize it today anyway.
The Weather Shield bottom doesn’t have a slit in it. Why not and how do I get in and out of my Hennessey Hammock?
The Weather Shield was made without a slit to simplify the design and maximize weather protection. It totally prohibits any form of draft thru the entrance slit. It was also kept as a simple rectangle so that it could be worn over the shoulders as a cape by the light and fast crowd who have pitched their extended length poncho as their tarp. This provides rain protection for a trip to the latrine or to the shelter during inclement weather without disturbing the sheltered hammock.Entry and exit is simple. Walk up to the foot end, grasp the side of the Weather Shield, gently push it down and away from the slit. Walk in, turn around, sit, pull your legs in and the elastic suspension system will automatically return the Weather Shield to its proper position. To exit, put out a foot, catch the edge of the Weather Shield, slide it to the right and exit normally. When the hammock is empty you may have to reposition the Weather Shield manually, since there is no weight in it to activate the self return feature.