One common use is for placing food or snacks on the bed. Instead of putting plates, packaging, or drinks directly on clean sheets and blankets, guests can use the runner as a temporary surface. This can help reduce stains, crumbs, and spills on bedding that would otherwise require more extensive cleaning.
The runner is also useful for personal belongings such as jackets, handbags, backpacks, or suitcases. These items may have picked up dirt from floors, vehicles, or other public areas, so keeping them on the runner instead of directly on the sheets can help protect the bed. Its position near the foot of the mattress also makes it convenient for resting feet, particularly if someone lies down before removing their shoes or socks.
Hotels may therefore use bed runners for a combination of appearance, cleanliness, and convenience. They provide guests with a designated place for items that might otherwise dirty the bedding and can help protect sheets and blankets from stains during different activities. So while the colorful strip may look purely decorative, it can actually serve several useful purposes inside a hotel room.