Noah leaks with the GK nappies overnight. I use the double insert as well as that smaller booster insert and still within a few hours he leaks. I have had success with BumGenius and what I do is button up the insert to make it newborn size and use the newborn insert as well and put the bulky part at the front of the nappy to catch more wetness. I have also had success overnight with my Hautes Pocket using all 3 inserts but I find my Hautes is looking very ratty and horrible after a few uses.