Can Ticks Survive Indoors or in Your Bed?

TickSpot Guide · Updated October 2026

Can ticks survive indoors? Only briefly. The castor bean tick, which is almost always the one in question, needs at least 80 per cent humidity according to the ECDC and dries out in heated rooms instead of settling or breeding there. The exceptions are the brown dog tick and the pigeon tick — both can hold out in buildings, according to Germany's Federal Environment Agency (UBA).

Why homes are hostile to ticks

The decisive factor is not the temperature but the humidity. According to the ECDC, Ixodes ricinus requires a relative humidity of at least 80 percent and dries out easily away from a host. That is exactly why ticks sit outdoors in the damp ground layer, under leaf litter and in tall grass — and not on dry, sunny surfaces.

A heated home is far below that level. How long a tick holds out there depends on the actual humidity; figures from a few days up to two weeks circulate in advice articles. We did not find a reliable study on this — the only dependable part is the direction: days, not months, and they die of desiccation.

Ticks in the bed — usually a case of mistaken identity

The worry about "ticks in the bed" is widespread, but there is no reputable source describing the castor bean tick living or reproducing in bedding. It cannot complete its development cycle indoors. As a rule, what lies behind the worry is a confusion with bed bugs or dust mites — those are completely different animals with completely different behaviour.

That doesn't mean a tick never ends up in a bed: one that hitched a ride on clothing or a pet can of course get there and bite too. The distinction matters — a single passenger you brought in is something entirely different from an infestation. Whether a spot you've found on your skin is a tick at all is covered in "Tick bite or mosquito bite?" and "Tick or Mole?".

Exception 1: the brown dog tick

One species breaks this rule: the brown dog tick (Rhipicephalus sanguineus). It comes from southern Europe, copes with dry air and can genuinely establish itself in heated homes — according to the UBA, mass infestations can occur in living spaces. Its bites can cause wheals, and many larval bites can lead to more widespread skin irritation.

It almost always reaches Germany via dogs that have travelled back from the south. Anyone who repeatedly finds ticks at home after a holiday with the dog should have this checked by a vet — that is the case where the species really matters.

Exception 2: the pigeon tick

The second species that lives in buildings is the pigeon tick (Argas reflexus), a soft tick without a dorsal shield. It lives at pigeon nesting sites in lofts and on façades. According to the UBA it comes into homes mainly when building work has cut pigeons off from their nesting sites — the ticks then look for new hosts at night and hide during the day in cracks or behind loose wallpaper. No transmission of pathogens to humans is known so far, the UBA says, but bites can cause allergic reactions.

What both species look like and how they differ from the castor bean tick is in "Tick Species in Germany".

Clothes after a walk in the woods: the dryer beats the washing machine

This is the most practically useful part — and it goes against intuition: washing alone often isn't enough.

• Ticks largely survive a wash at 40 °C. In studies, nearly all the animals came through a 40 °C wash cycle; only at 60 °C did they all die.
• A US study arrives at the same picture: only from a wash-water temperature of about 54 °C were all ticks killed — in cooler "warm washes" around half survived.
• The tumble dryer is the more effective method. At 60 to 70 °C all ticks died. The US health agency CDC recommends putting dry clothes in the dryer for 10 minutes on high heat; if the laundry is damp, it takes considerably longer.

So the practical order is: dry first, then wash — not the other way round. If you don't have a dryer: after time spent in the green, don't put your clothes on the bed or sofa — shake them out and put them straight into the laundry. And above all, check your own body, because that's where the real risk sits.

What you can actually do

1. Check your body and remove any ticks you find immediately — the Robert Koch Institute's core advice, and more important than anything about your home. How to do it is in "How to remove a tick properly"; why every hour counts, in "How Long Does a Tick Feed?"
2. Dryer first: dry clothes, ten minutes on high heat, as the CDC recommends. Damp laundry needs longer.
3. No dryer? Wash at 60 °C — ticks largely survive 40 °C.
4. Don't drop worn clothes on the bed or sofa; shake them out and put them straight in the dryer or laundry basket.
5. Check your dog and cat before they jump on the sofa or bed — the technique is in "Checking dogs and cats for ticks".
6. Don't crush a tick you find — dispose of it: in a sealed container, wrapped tightly in tape, in alcohol or down the toilet, per the CDC.
7. Ticks again and again after a trip with the dog? Have a vet check, and call in professional pest control for an infestation.
8. Ticks at night and pigeons on the building? Think of the pigeon tick — the UBA recommends professional pest control, because the hiding places are hard to find.

The home itself is, as a rule, nothing to worry about when a single tick has come in. Prevention pays off earlier, outdoors, with clothing and repellent — compared in "Tick repellent for people: DEET vs. picaridin".

Frequently asked questions

Sources

• ECDC: Factsheet Ixodes ricinus (requirement of ≥ 80 % humidity)
• Nelson CA et al.: "The heat is on: killing blacklegged ticks in residential washers and dryers", Ticks and Tick-borne Diseases 2016;7(5):958–963
• Dautel H, Gharbi A, Kleier S (2012), studies on the survival of ticks during washing and drying processes (conference contributions, 7th TTP Conference)
• CDC: Preventing Tick Bites (dryer recommendation)
• German Federal Environment Agency (UBA): Hard ticks (brown dog tick, mass infestation indoors; 4 Sep 2026, in German)
• German Federal Environment Agency (UBA): Pigeon ticks (occurrence in homes, bites, control; 24 Sep 2026, in German)
• CDC: What to do after a tick bite (disposing of a tick)
• Robert Koch Institute: FAQ Ticks (checking your body, removing ticks immediately — in German)

Important: This article provides general information and does not replace medical or veterinary advice. If you suspect a tick infestation in your home, consult a vet and/or a professional pest-control service.