The exact amount of time a bed bug can live without a blood meal is still being debated in scientific circles. Current research leads people to believe that the average bed bug can survive in a home or office setting for approximately three months without feeding on human blood.
The bed bug life cycle begins like that of most insects—with an egg. Bed bugs will only romance to fertilize eggs after a blood meal. They meet back up at their harborage (a community of bed
Under normal circumstances, bed bug nymphs become adults within about 5 weeks or so. Without a host, however, they are weaker than fully mature bed bugs, and are more likely to starve to death. In warmer temperatures, a bed bug will still survive a couple of months without a meal.
Bed bugs who feed regularly have a lifespan of ten months, while those without adequate feeding can live a little more than a year. If a blood host is available, bedbugs can live to see three generations of offspring ready willing and hungry to prey on their human hosts.
A bed bug can last up to a year or longer without feeding if the temperatures are ideal. Still, the average bed bug life cycle isn't very long, but they do lead active lives, which includes aggressively mating.
How long can bed bug last without blood meal? A newly hatched egg can live for few weeks without feeding. A nymph, on the other hand can last up to 5 months of not taking blood meal. And an adult bed bug can even last up to 12 months of no blood meal. But all these numbers depends on temperature and area where the bed bug is.