When checking into a hotel or motel, safety should be just as important as comfort—especially when you’re in a new or unfamiliar location. Most travelers glance around the room, inspect the bathroom, and make sure the door locks properly. But one area often goes unnoticed: the space beneath the bed. According to Esther, an experienced Dutch flight attendant with KLM, a quick and clever trick can help ensure your room is safe from the moment you arrive—simply toss a water bottle under the bed.

This easy test works in two ways. By rolling the bottle firmly from one side to the other, you can detect any hidden objects or unexpected obstacles under the frame. If the bottle glides smoothly, the space is likely clear. But if it stops or bumps against something, it may signal the presence of luggage, debris, or, in rare cases, something more concerning. If anything feels off, it’s wise to step out of the room and ask hotel staff for assistance or request a different room.

Beyond safety, this under-the-bed check can reveal a lot about the cleanliness of your space. This area is often overlooked by housekeeping crews, allowing dust, dirt, or forgotten items to accumulate. In some cases, an uncleaned space can attract insects or rodents—an unwelcome surprise for any traveler. A quick bottle roll can help you spot these issues before you fully settle in.

Taking just a few seconds to check under the bed can boost both your safety and your peace of mind. If anything seems unusual, leave the room immediately and notify hotel management or security. Small precautions like this one can make a major difference in ensuring your stay is comfortable, secure, and worry-free.