They don't reuse the beds over and over
Not sure where you got that information, but it is not entirely correct.
They may not use the same beds in the summer or fall, but I often find beds that are re-used in the spring. They are not very active at this time of year and won't move far from a food source. T
In my areas they will feed and rest in an area for a couple days, move on for a few days and then come back for a few days and use the same bed.
I have placed sticks or kicked up dirt in the beds and have come back to find them clean and smooth, with bear hair in the bed. I have also found that if I mess with a bed too much they will make a new one often only yards away.