Adult fleas can live a few days to a couple of weeks on your couch if they don't have a host to feed on. However, flea eggs, larvae, and pupae can live much longer, even several months, with the right conditions. That is why it’s vital to eradicate them from your couch and other upholstered furniture.

If you’ve ruled out small cockroaches, some other bugs you might mistake for bed bugs are carpet beetles, bat bugs, and booklice. However, they’re usually found in different parts of the home. Carpet beetles are found in fabrics and carpets, bat bugs live in attics, and booklice dwell around books and damp areas.

Homes provide a stable environment with ample hiding spots, warmth, and protection from the elements, making them ideal habitats for spiders. The presence of insects within homes serves as a major food source for spiders, enticing them to establish their webs or burrows in and around residential structures. The nooks and crannies of homes provide perfect locations for spiders to construct webs or lay in wait for unsuspecting prey.

Allowing wolf spiders to reside in your home can have benefits, as they serve as natural exterminators, preying on insects and pests that could become problematic. Their presence can help keep your residence relatively free of nuisance insects such as flies, ants, and cockroaches, reducing the need for chemical pesticides. Wolf spiders are generally not hostile towards humans, and their bites, although painful, usually don't result in a significant medical concern. If you can coexist peacefully with these spiders and recognize their role in maintaining a balanced ecosystem within your household, they can contribute to a healthier and pest-reduced environment.