For best results, we recommend wearing the Invisalign aligner trays for at least 20 hours daily. You'll need to remove your aligners to eat, drink, and brush and floss your teeth. Some patients remove them while sleeping, but this may lengthen your overall treatment time. If you're wondering whether you can wear Invisalign while exercising, the answer is yes! Just be sure to remove your aligners before participating in contact sports. If you're still unsure how often or when you should wear Invisalign, speak with your dentist about how your schedule might affect treatment outcomes.