AITA from banning my pregnant wife from eating in bed?

My wife is pregnant with our second child. I’m finding her really annoying at specific times. Specifically when she comes to bed and blows her nose (it sound like I’m at the zoo) and she eats snacks in bed leaving crumbs and crunching really loudly. I’m generally very supportive, but get really annoyed by this - we fight about it every night and I’ve asked her to stop eating food in the bed. am I being unreasonable?