Somewhere around my son's 16 month birthday, our cloth diapers began leaking at night. At this point I was only using a regular insert paired with a newborn insert in my pocket diapers and I knew this method wasn't going to last forever.
My first solution was to take a hemp pre-fold such as the Econobum prefold that I once received as my free promotional diaper from Kelly's Closet (click on the icon on my right sidebar!) and fold it in thirds paired with a one-size microterry insert then stuff it into one of my pocket diapers such as my Bum Genius 4.0 or my Happy Heiny One Size Diaper. This worked beautifully and kept my son dry all 12 hours of his nighttime slumber. The only problem was that I only owned one pre fold diaper, (because this isn't 1952 people, we use pocket diapers now) so I either needed to buy a few more just for nighttime use or shop for something similar that would do the job.
I found some Knickernappies Super Do Pre Washed Inserts and they looked like just what I needed to solve the problem. They had 6 layers of hemp terry combined with 2 layers of microfiber. They were all once piece and appeared less bulky than the pre fold I had been using. I ordered 3 to start with. The large size fit perfect into all of my one-size pocket diapers, Bum Genius, Smartipants, Happy Heiny, Fuzzi Bunz and Kissaluvs. They were a lot less bulky than double stuffing the diapers and one insert lasted 11+ hours through the night for my toddler. SCORE!!!
Knickernappies Super Do inserts will fit any of these diapers!
I am still using them today as my 23 month old son nears his two year old birthday. He is dry and happy all through the night as long as you sing him, "Twinkle Twinkle Little Star" first and his three favorite friends are smooshed around his head :)