Using your personalized long sleeve sleepshirt is easy! Just put it on like any regular T - shirt and enjoy the comfort. When it comes to washing, you can simply toss it in the washing machine as it's machine - wash safe. However, to keep it looking its best, turn it inside out before washing. This helps protect the copyrighted artwork. As for the color difference you might notice, don't worry too much. It's just a minor variation caused by lighting during the photo shoot or your monitor settings. Also, be gentle when handling the tear - away label to avoid any accidental damage. With these tips, you'll be able to make the most of your sleepshirt for a long time.