  We investigate squeezing of magnons in a conical spin spiral configuration.
We find that while the energy of magnons propagating along the $\boldsymbol{k}$
and the $-\boldsymbol{k}$ directions can be different due to the non-reciprocal
dispersion, these two modes are connected by the squeezing, hence can be
described by the same squeezing parameter. The squeezing parameter diverges at
the center of the Brillouin zone due to the translational Goldstone mode of the
system, but the squeezing also vanishes for certain wave vectors. We discuss
possible ways of detecting the squeezing.
