Yes, I concur with that. Falling asleep is not the effect I get when listening to boring reproduction. Boring reproduction instead drives me to distraction. Boring music reproduction is not unpleasant, it's uninteresting. Which is not the same feeling as reproduction that induces deep relaxation. Some music is composed to be restful. The sleep inducing effect should of course be composer and composition dependent. Mozart's adagios, in particular, induce a therapeutically relaxing effect on me, often culminating in peaceful sleep. Music can induce all manner of emotional states, in addition to relaxation. If playback only ever induces boredom or sleep, then something is probably very amiss with that system.