With the exceptions of the Deep Jungle
and Deep Jungle XL
, no. Hennessys are single-layer otherwise.
However, apparently, Hennessy has started adding shock cord
to the inside of their hammocks to hold their proprietary pad in place inside. I can't see that it wouldn't work with a regular pad, but I have an older model that lacks the shock cord, so I can't give a first-hand account of it.
Hope it helps!