Those Mysterious White Spheres at the Foot of the Bed: An Immediate Instinctive Reaction
The initial sensation that grabs us when we discover these small white spheres, frequently found near the bed, is fear. It is an instinctive, immediate response to an unfamiliar object appearing in an otherwise familiar space. However, once the initial alarm subsides, curiosity gradually takes hold, prompting a compelling question: where do these spheres originate? Who could have placed them there?
The most widespread explanation proposed by internet users points to lizard eggs, specifically those laid by domestic geckos.

Why Would the Lizard Choose This Exact Spot, So Close to the Bed?
This phenomenon is far from random. Domestic geckos are much more intentional and strategic creatures than one might assume. When a female gecko searches for a site to lay her eggs, she carefully selects a location that satisfies several essential conditions: warmth, darkness, protection, and moisture.
The narrow space between a wall and a bed perfectly meets all these requirements. The mattress traps the warmth of the sleepers’ bodies, creating a gentle and consistent temperature in the surrounding area. This spot, often undisturbed, is enveloped in darkness. Additionally, the humidity here tends to be slightly elevated compared to the rest of the room, helping to prevent the eggs from drying out and ensuring a favorable environment for their development.
Moreover, bedrooms frequently attract insects drawn to the light or the warmth generated by their human occupants. For a gecko, whose diet primarily consists of mosquitoes and other small flying insects, this proximity offers an abundant supply of food within easy reach. Thus, settling near the bed and depositing eggs nearby is a completely logical and strategic choice for a gecko.

But Are These Spheres Really Lizard Eggs?
This is exactly where the subtlety of the question adds an intriguing dimension. Normally, a female gecko lays one or two eggs at a time, not a large cluster of perfectly uniform spheres. Genuine gecko eggs have a slightly calcified or leathery shell, are not perfectly round, and often adhere to the surface they are laid upon.
If the tiny spheres found are perfectly uniform, numerous, and resemble plastic or foam beads rather than natural eggs, then the explanation is different and decidedly more ordinary: they are often polystyrene beads or microbeads coming from a torn pillow, cushion, or bag.
To resolve any uncertainty, a simple inspection is usually enough: look at one of the spheres closely. If its surface is irregular and slightly soft, it is most likely an egg. However, if it appears smooth and synthetic, discard these beads and consider replacing the pillow or cushion from which they came.

Should You Be Afraid of Having a Gecko at Home?
Absolutely not. Domestic geckos are entirely harmless creatures. They do not bite, carry no diseases, and actually serve as beneficial allies by reducing populations of mosquitoes and other small nuisance insects.
If you find small eggs tucked away in a hidden corner, the best course of action is to gently relocate them outside and then thoroughly check for potential entry points through which the lizard may have gained access to your home.
Ultimately, nature is often much closer to us than we realize — sometimes just a few centimeters away from our pillows.