How Long Can Bed Bugs Live Without a Human Host?
If there was absolutely no host available from which to feed on their blood, a young bed bug could die as quickly as within several weeks, while an adult bed bug could survive as long as 4.5 months under optimal conditions of heat and humidity before dying of starvation1.

How long does it take for bed bugs to die without a host?

People can also bring bed bugs into their home on infested clothing, bedding, furniture, and luggage. Bed bugs can go without feeding for 20 to 400 days, depending on temperature and humidity.

Will bed bugs die if left alone?

They're happy to feed on pets and even rats and mice in the absence of a human host. So, just leaving your mattress alone for long enough is no guarantee that they'll die, unless you cover it with a protective, sealing cover. If they're not sealed in, bed bugs are happy to travel.
Elena Rostova

Elena Rostova

Lead Health, Wellness & Medical Journalist

Elena Rostova holds a Master's degree in Public Health Journalism. She covers groundbreaking medical research, holistic wellness trends, mental health awareness, and nutritional science.

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