Nursing home (NH) residents’ preferences are the foundation for person-centered care, yet little is known about which preferences are most important to residents or if the way residents feel about preferences change over time. This study used the Preferences for Everyday Living Inventory (PELI) to assess resident’s (n = 255) important preferences and examine changes over 3 months. The study highlights preferences that are most important to NH residents (i,.e., staff show respect), and shows that most (68 of 72) preferences had 70% (percent agreement) or higher stability in importance over 3 months. Preference-based care plans can be used with confidence over a 3-month period.