As we previously mentioned, buying the right bed size is the most important factor in offering your dog a good night sleep. As a general rule, the bed should be wide and long enough for your pet to be able to stretch and rest comfortably, without having to curl up.
Consider your dog’s age, size, and breed as well. If you own a puppy, you should expect to change the bed in maximum two years to a proper adult size. Again, the best method is to observe your dog’s sleeping habits for a few nights and decide the proper length and width according to its needs.