A nursing conceptual model is used to set a guideline and is based on a concept. Nursing theory describes the knowledge used to support nursing practice and is based on evidence. In Florence Nightingales Environmental Theory, she states that the nurse can utilize the patients environment to help optimize their healing. This can be done by making sure certain environmental factors are present such as: clean water -fresh air, -sunlight -cleanliness of the environment -and appropriate drainage This practice is still used today to aid is patients healing. Although we no longer need to worry about things such as appropriate drainage, we still maintain a cleanly environment, make sure the patient has fresh clean water to drink if allowed. In the hospital setting we turn on lights and open blinds during the day and turn off lights and close the blinds at night. We fill out the white boards to help the patient stay oriented to date and day as well as who their providers are and the goal for the day. In the hospital where I work, we have what is called Quiet Time It is a 2-hour block during the day from 1430-1630 where the hallway lights are turned down, the staff is expected to be quieter in their work and no over head paging is allowed. This is used to decrease stimulation and promote healing in the hospital patients. Signs are posted all around the hospital notifying staff and visitors of quiet time hours.