Bed bugs come into your home by hitching rides on your belongings, your furniture, and even you. They don’t fly, jump, or live outdoors. Every bed bug infestation traces back to a bug (or its eggs) physically traveling from an infested location to a new one, almost always carried by a person who had no idea it was happening.
How Bed Bugs Travel From Place to Place
Bed bugs are hitchhikers. They crawl into luggage, backpacks, purses, clothing, and shoes, then ride along wherever you go. A single pregnant female tucked into the seam of a suitcase is enough to start a full infestation. Because they’re flat, roughly the size of an apple seed, and mostly active at night, people rarely notice them climbing aboard.
The most common scenarios look like this: you stay in a hotel with bed bugs and they crawl into your luggage overnight. You buy a used couch or mattress that’s already infested. A guest visits your home carrying a few bugs in their bag. You pick up a piece of furniture left on the curb. You sit in an infested seat on a bus, train, or airplane and one ends up on your jacket. In apartment buildings, bed bugs also travel between units through walls, electrical outlets, and shared plumbing spaces.
They’re Attracted to You, Not Dirt
One of the most persistent myths about bed bugs is that they show up because a home is dirty. Research has directly tested this idea, and the answer is clear: there is no significant correlation between house cleanliness and bed bug presence. Infestations show up in five-star hotels and high-income homes at comparable rates to anywhere else.
Unlike cockroaches or rodents, bed bugs aren’t drawn to food scraps, garbage, or grime. They’re attracted to three things: warmth, carbon dioxide, and blood. You produce all three while you sleep, which is why they congregate near beds. A spotless home offers exactly the same appeal to a bed bug as a cluttered one, because the thing they’re after is you.
Places You’re Most Likely to Pick Them Up
Hotels and short-term rentals are the classic source, but bed bugs turn up in plenty of other places. They’ve been found on airplanes, burrowed into fabric seat covers, blankets, and pillows. On at least three commercial flights in 2024, passengers discovered bed bugs mid-flight, with one passenger reporting 13 bite marks by the time she landed. Cleaning professionals who service aircraft say the problem is more common than most travelers realize, because fabric-covered seats that carry thousands of different people offer ideal conditions.
Public transit, movie theaters, office buildings, hospitals, and college dorms are all documented sources. Any place where people sit or sleep on shared upholstered surfaces creates an opportunity for bed bugs to transfer from one person’s belongings to another’s. Cities with dense populations and high turnover in shared spaces tend to have the worst problems. Chicago, Cincinnati, Cleveland, and Columbus consistently rank among the most infested cities in the U.S.
Used Furniture and Electronics Are High-Risk Items
Bringing secondhand items into your home is one of the fastest ways to introduce bed bugs. Mattresses, couches, bed frames, and upholstered chairs left on the street are frequently infested. Health departments explicitly warn against picking up discarded furniture for this reason. Even purchased secondhand furniture should be carefully inspected before it enters your home.
What surprises many people is that bed bugs don’t limit themselves to fabric. They crawl inside electronics through ventilation ports and small gaps, hiding in TVs, laptops, gaming consoles, alarm clocks, routers, power strips, and printers. Electronics offer exactly what bed bugs want in a hiding spot: tiny dark crevices, consistent warmth from the device, and low disturbance since most electronics sit in one place for long periods. This means buying a used TV or receiving a secondhand laptop can introduce bed bugs just as easily as a used mattress.
How Fast an Infestation Grows
A single female bed bug produces between one and seven eggs per day for about 10 days after feeding. Under favorable conditions (room temperatures between 70°F and 90°F with a nearby host), a bed bug population can double every 16 days. That means a handful of bugs brought home in a suitcase can become hundreds within a couple of months.
Making matters worse, bed bugs are extraordinarily resilient. They can survive anywhere from 20 to 400 days without a blood meal, depending on their life stage and the temperature. This means bugs hiding in a stored suitcase, a vacant apartment, or a piece of furniture in a garage can remain alive for months, waiting to feed the next time a human host is nearby. It also explains why bed bugs sometimes seem to appear out of nowhere in a home that’s been empty or in furniture that’s been sitting in storage.
How to Avoid Bringing Them Home
Travel is the single biggest risk factor, so your best defenses center on luggage and hotel habits. When you check into any room, inspect the mattress seams, headboard, and bed frame before unpacking. A small flashlight helps. Look for tiny dark spots (fecal stains), shed skins, or the bugs themselves. Use the luggage rack to hold your bags rather than setting them on the bed or floor, and keep luggage as far from the bed as possible.
When you get home, unpack directly into the washing machine. Run everything through a dryer on high heat, because the heat is what kills bed bugs. Washing alone generally won’t do it. Store your suitcases in the basement, garage, or a closet far from the bedroom. Never store luggage under your bed.
For secondhand purchases, inspect every seam, crack, and crevice before bringing the item inside. With furniture, check along stitching, inside cushion folds, and underneath fabric liners. With electronics, look into vents and ports with a flashlight. If you see any signs of bugs, tiny white eggs, dark spots, or shed skins, leave the item behind. The cost of dealing with an infestation far exceeds whatever you saved on a bargain find.