I am in my 4th Diaper Study with Nieto Research! I just love it! They send me FREE Diapers and I keep a log of if they leak or such. It’s super easy and right now I am doing a pull up study on my 7 yr old. They are sending me 3 packs of pull up type diapers to try. I use them for 7 days each and fill out forms about if they leaked or not. They sent me full packs…which will last me a month! YEAH BABY! Sign up and get on their list and see if you can test some too!