Cockroaches are not likely to bite living humans, except perhaps in cases of extreme infestations where cockroach population are large, especially when food becomes limited. In most situations, cockroaches would not bite humans if there are other food sources such as in garbage cans or exposed food.
Can roaches bite you at night?
Cockroaches Bite In The Night
But, when the night falls, it is also the time for them to bite humans because their targets are asleep. Because of this, it will be harder for you to monitor the pest and might as well wake up with bites on your body.
What if a cockroach bites you?
If you have been bitten by a cockroach the best course of treatment is to wash the bite, and the area around it with warm soapy water. This will help eliminate any germs left behind the cockroach and reduce the risk of infection.