If those white spheres near your bed were actually lizard eggs, their appearance beside the head of your bed would not be random. Lizards often choose specific locations that provide safety, warmth, and protection for their eggs. Understanding why they might appear there can help explain both the behavior of the lizard and the environmental conditions inside your home.

First, it is important to understand that many house-dwelling lizards, especially geckos, commonly live indoors. They are attracted to homes because houses provide shelter from predators, stable temperatures, and a reliable food source in the form of insects. Once a female lizard is ready to lay eggs, she begins searching for a location that offers the best chance of survival for her offspring.

One reason a lizard might choose the area behind or beside a bed is warmth. Reptile eggs depend on environmental heat for development. Unlike mammals, reptiles do not incubate their eggs with body heat. Instead, they rely on surrounding temperatures. Areas near walls, furniture, and mattresses often remain slightly warmer than open floor spaces. A bed can trap heat from the people sleeping on it, creating a more stable temperature nearby. To a female lizard, this may appear to be a suitable place for egg development.

Another important factor is protection from disturbance. Lizards instinctively seek hidden places where predators are unlikely to find their eggs. The narrow space between a bed frame and a wall can provide exactly that kind of shelter. It is dark, enclosed, and often difficult for larger animals to reach. Since many people rarely inspect these hidden gaps, a lizard may view them as relatively safe nesting locations.

Darkness also plays a role. Lizards generally avoid laying eggs in bright, exposed areas. Direct sunlight can overheat eggs, while open spaces increase the risk of predation. The shaded area behind a bed remains dark for most of the day. This darkness may make the location seem ideal from the lizard’s perspective.

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