You will likely feel tired and may want to take short naps during the day when you first get home. However, you should try to stay out of bed as much as possible. The more you nap during the day, the less you will probably sleep during the night. Sometimes patients find that pushing themselves to stay awake during the day allows them to rest more fully through the night. You will have to see what works best for you.
Continue to use the incentive spirometer (the blue "ball machine") for the first week or two after you get home, approximately four to five times each day. At the end of the second week, you should be doing enough physical activity to stop using the spirometer.
Walk as much as you can tolerate, and walk a little bit further each day. The general rule is to walk for 20 minutes twice a day when you first get home. If the weather is cold or rainy, consider having someone drive you to an indoor shopping mall to walk. You should also try to increase your activity tolerance by slowly increasing the number of times that you walk to two to three times per day.
Your tolerance for activity and your stamina should slowly increase as the days and weeks go on. Don't be surprised if you have "good days" and "bad days" when it comes to your energy level and your stamina.