Do bed bugs come out when the lights are on?

“I keep finding bites in the morning, but I sleep with a lamp on. Do bed bugs come out when the lights are on, or are they only active in pitch dark?”

Yes, bed bugs do come out when the lights are on. They prefer darkness and tend to feed in the early morning hours, but a hungry bed bug will not skip a meal because a lamp is glowing. Sleeping with the light on is not a reliable way to keep them off your skin or away from your mattress.

Do bed bugs come out during the day?

While bed bugs are generally nocturnal, they do sometimes come out in the day. Here are a few situations that make daytime sightings more likely:

• A heavy infestation has pushed bugs out of crowded hiding spots
• The person sleeping in the room works a night shift and rests during the day
• The bugs have gone weeks without feeding and are searching harder
• Recent cleaning, furniture moving, or travel has disturbed their harborage sites

Spotting bed bugs in daylight usually points to a bigger bed bug problem hiding in mattress seams, baseboards, or behind furniture. A trained pest technician can inspect the property, confirm activity, and put together an effective bed bug control plan.