Cats' needs for a bed alter somewhat as they get older. Older cats can't move as rapidly as younger cats, so they prefer a bed where they can feel comfortable and comfortable. This is best done in enclosed beds like cat caves or igloos. Look for beds that aren't lifted off the ground or have high edges for senior cats who may not be as mobile as they once were. Arthritis in older cats is a common ailment, and a heated cat bed may be beneficial.