Hammock Underquilt

Hammock Underquilts, the first one, was designed by Jacks R Better in May 2004. We continue to optimize our hammock gear designs based on our real-world experience.

How Does An Underquilt For A Hammock Work?

Underquilts are a critical piece of hammock gear that provide better insulation underneath you than a sleeping bag. Sleeping bags do not work in a hammock because insulation only works when it has the ability to loft.  A sleeping bag’s insulation compresses under your body weight reducing its loft.  In a hammock, this leads to convective heat loss from the cold air stripping away body heat. An underquilt hangs outside the hammock allowing down to loft fully.

Underquilts work better than a sleeping pad in a hammock. Keeping a sleeping pad under you in a hammock is a constant struggle. Sleeping pads made of non-breathable materials cause you to sweat creating dampness in your clothes causing a chill as you cool off.

All Jacks R Better underquilts are optimized with a 25% overstuff to reduce down migration and enable the quilt to maintain its rating when the down losses loft between cleanings. All of our quilts work on any hammock including all gathered end and bridge hammocks.

Hammock Underquilt Features

• Fit – Jacks R Better underquilts work on all gathered end and bridge hammocks. Such as ENO Hammocks, Hennessy Hammocks, Warbonnet , Dutchware Chameleon, and most other brands and DIY hammocks.
• Down – RDS Certified Responsible Down. 850+FP  or 1000 FP
• Overstuff: Optimized with a 25% over-stuff. Overstuff reduces down migration and enables the quilt to maintain its rating if the down loses loft between cleanings. Consequently, we do not recommend any additional over-stuffing.

How to properly hang a hammock underquilt

• Hang tight enough to prevent any air gaps between the quilt and the hammock.
• Not too tight that the down can not fully loft (differential baffles prevent this).
• Hang the quilt tight enough to slightly lift the hammock when you are not in it.
• Pull the end cords tight enough to seal off the ends of the underquilt but not too tight.