Even if you did not care for the environmental gains, you still benefit a lot from using organic cotton for you and your family.  Regular cotton is grown with pesticides and insecticides, and loaded with toxic chemicals during the dying process.  You would not eat anything with chemicals in it why wear it or sleep on it?  Think if your baby wore these, their skin is so delicate that it would absorb all these chemicals.  They can develop a rash and even allergies from these chemicals.  You do not have to worry about that if you chose organic cotton baby clothes instead.  Additionally, organic cotton is much softer and lasts longer.