  We develop a thermal description for photon modes within the context of
bouncing universe. Within this study, we start with a Lorentz-breaking
dispersion relation which accounts for modified Friedmann equations with a
bounce solution. We calculate the spectral radiance, the entropy, the Helmholtz
free energy, the heat capacity, and the mean energy. Nevertheless, the latter
two ones turn out to contribute only in a trivial manner. Furthermore, one
intriguing aspect gives rise to: for some configurations of $\eta$, $l_{P}$,
and $T$, the thermodynamical behavior of the system seems to indicate
instability. However, despite of showing this particularity, the solutions of
the thermodynamic functions in general turn out to agree with the literature,
e.g., the second law of thermodynamics is maintained. More so, all the results
are derived \textit{analytically} and three different regimes of temperature of
the universe are also considered, i.e., the inflationary era, the electroweak
epoch and the cosmic microwave background.
