  We study the extent of quantum gravitational effects in the internal region
of non-singular, Hayward-like solutions of Einstein's field equations according
to the formalism known as Horizon Quantum Mechanics. We grant a microscopic
description to the horizon by considering a huge number of soft, off-shell
gravitons, which superimpose in the same quantum state, as suggested by Dvali
and Gomez. In addition to that, the constituents of such a configuration are
understood as loosely confined in a binding harmonic potential. A simple
analysis shows that the resolution of a central singularity through quantum
physics does not tarnish the classical description, which is bestowed upon this
extended self-gravitating system by General Relativity. Finally, we estimate
the appearance of an internal horizon as being negligible, because of the
suppression of the related probability caused by the large number of virtual
gravitons.
