Here's how to get the most out of your Momma Gorilla Sleepyhead long - sleeve t - shirt. Wear it whenever you want to feel comfortable, whether it's for a nap or a casual day out. When it comes to cleaning, just toss it in the washing machine on a cold cycle. Make sure to turn it inside out and wash it with clothes of similar colors. Only use non - chlorine bleach if there are stains. After washing, you can either hang it to dry for the best look or use the cool/low heat setting in the dryer. Don't use fabric softener because it can make the colors fade. And remember, don't iron or dry clean the shirt to keep it in great shape.