Last night I got home and there was ONE night time diaper clean. Cosette woke back up at midnight and had pooped so I had to put her in SOMETHING. I grabbed a Jt fitted and my Jt wool cover. I stuck a doubler in the fitted and the rest of the night was great. No leaks at all. She even slept in until about 10am so she was in it for 10 hours without issue.