Mirtazapine / remeron for sleep

Does anyone have experience or knowledge pertaining to the use of mirtazapine for sleep (prescribed by PNP)? I know there are some medications that inhibit ketamine’s effectiveness and I don’t want to do that! (Did initial series of infusions, had one booster 2 weeks ago, plan on boostering again in a couple of weeks.) My prescriber is unfamiliar with interactions with ketamine. Thanks.