Travel often feels relaxing the moment you step into a hotel room. The bed is neatly made, the air is cool, and after a long journey, it’s easy to assume you’re completely safe. But seasoned travelers and safety experts suggest taking a few quick precautions before settling in—one of the simplest being to toss a water bottle under the bed.

At first, this may sound unusual, but it serves a practical purpose. Hotel beds often have space underneath that isn’t always checked thoroughly between guests. By gently rolling or tossing a bottle under the bed, you can quickly test if the area is clear. If the bottle rolls out smoothly on the other side, there’s likely nothing there. If it gets stuck, stops abruptly, or doesn’t come out, it could mean something is blocking the space.

In most cases, the obstruction is harmless—like forgotten items or extra bedding. However, this quick check helps you stay aware without needing to bend down or inspect the area closely right away.

This habit became popular among frequent travelers, including flight crews, who spend a lot of time in hotels and develop simple routines to stay safe. It’s not about fear—it’s about awareness.

While this trick alone doesn’t guarantee safety, it’s a small step that complements other good habits, like locking your door, checking exits, and being mindful of your surroundings. Sometimes, simple actions can make a big difference in helping you feel secure wherever you travel.