Systems and methods of monitoring posture and vital signs are disclosed. In some embodiments, the system includes a cushion on which a user can sit. The cushion includes a first optical fiber sensor, a second sensor, and a first computing device. The system may further include a second computing device communicatively coupled to the first computing device and configured to receive sensor data from the first computing device. One or both of the first and second computing devices may operate to combine a signal indicative of the movement of the user with a signal indicative of the direction of movement of the user to determine a posture of the user. The system may provide feedback based on the user's posture and recommend actions to improve posture. The system may further monitor the user's heart rate, respiration rate, or other vital signs.
