Mirtazapine-induced sleepiness

Lately I've been on a therapeutic regimen of 40mg of paroxetine and 30mg of mirtazapine and I find it quite functional, but I have a little problem that is that I sleep a lot, any advice? I was considering asking the psychiatrist about switching to an SNRI like duloxetine or venlafaxine or adding bupropion or modafinil.