  We discuss the possibility that gravitational fluctuations
("gravitational-waves") are trapped in space by gravitational interactions in
two dimensional Jackiw-Teitelboim gravity. In the standard geon (gravitational
electromagnetic entity) approach, the effective energy is entirely deposited in
a thin layer, the active region, that achieves spatial self-confinement and
raises doubts about the geon's stability. In this paper we relinquish the
"active region" approach and obtain self-confinement of "gravitational waves"
that are trapped by the vacuum geometry and can be stable against the
backreaction due to metric fluctuations.
