The Pea Pod can't be used (properly) with any kind of
Hennessy Hammock in stock configuration. It needs to
completely enclose the hammock. It wouldn't fit around an
HH, and you couldn't open and close it from inside an HH.
If you laid it out flat etc., etc. But then it wouldn't be a
Pea Pod, but just a flat quilt.
That's the thing with all these proposed modifications to
the HH. In my book the HH is what it is BECAUSE the bug net
is permanently attached and you enter through the bottom.
That (and the other patented features) are the very essence
of the design.
If you want a hammock with more flexibility in
configuration, go the Speer route. Or explore Clark
hammocks, or the excellent and very affordable Mosquito