Getting rid of pests on a couch.
One of my sister's friends had moved away for college about a year ago and her parents decided to give her old (about 2 years old) couch to my sister. The couch is one of those that unfolds into a bed, it's black and the upholstery is made out of a velvety material. Well, we washed the upholstery in the washing machine (a lot of the cushions had zippers). And then we noticed that there were these little bugs roaming around the couch. They have a rounded cone shaped body, little antennea, and a muted bone/grey color. We saw little ones at first (about 3 or 4 of them) but afterwards we saw a bigger one (about half an inch). What product or home remedy can I use to get rid of them? The couch is very pretty and in good conditions, it was just ignored for about 3 or 4 months.