14 days you should leave the bed alone for
Pubic lice can live less than a day without a human host.
Adult bed bugs can live for as long as a year without feeding,[18] under typically warm conditions
Months
Without a host a fleas life is only a few days. (When provided a host for ample food their life can span over 100 days.)
If you are asking if a virus can live very long without its host, then no. Viruses aren't alive in the first place. Because viruses can't reproduce on their own, they are not considered living organisms. Because they aren't living to begin with, they cannot die.
Lice can survive without air for about 24 to 48 hours. However, they typically need a host to feed on blood to live longer, as they cannot survive for more than a few days without a blood meal. Without a host, their chances of survival diminish rapidly.
2-3 years
There are no known bugs that live in lungs. It is possible for a short period of time one could survive in a lung though not for long.
2 days
Cockroaches, often referred to colloquially as "jay bugs," can live for several weeks without their head. This is because their nervous system is decentralized, allowing them to function without a brain. They rely on a series of ganglia (nerve cell clusters) distributed throughout their body to control basic functions. However, they will eventually die due to dehydration and inability to eat.
Cicadas usually have a live span ranging from 13 to 17 years.
Green shield bugs have a life span of up to 2 years. These bugs are typically seen in the months of April to October.