Not at all. I'm using these with my second baby now. She's 16 months old and tiny for her age. My son was tall for his, and we had no problems with them either. They were fantastic for overnight since my son slept 11-12 hours. Never woke a baby to change them because I trusted these diapers so much. I would highly recommend them. I tried Cruisers and they leaked with my son, so I'm not bothering with my daughter. I will use these until she potty trains.