Pesach Cleaning Archives

I have a lot of couches in my house and for Pesach, I obviously take off all the cushions to clean out what is under there but I want to know if I have to also reach my hand further under, into the places you can not see, to try to pull out any crumbs or is that unnecessary? I attached a picture which gives a visual of what I am referring to.

Answer: You must clean out as much as you can reach with your hand. Best is to pour a cleaning agent which will make all the crumbs of food…

Yes, as many times Chometz gets stuck there when one is eating and touches under the table and chair. #3415 (2)