Need an overnight solution? Looking to add on to your current reusable diapering system as an answer for your little heavy wetter? Accessorize with a Thirsties Hemp Insert for the best in bulletproof protection against leaks. Thirties Hemp Inserts add additional absorbency to your existing cloth diapering system, without a lot of extra bulk. Made from 6 layers of remarkably soft hemp and cotton blend knit jersey, you will find that these are exactly what your baby needs to sleep comfortably through the night without leaks.v Cloth Diaper Care: Wash all diapers at least one time before use. Washing and drying your hemp and natural cotton idapers at least 3 times before use will wash away the natural oils that inhibit absorption. Prewash on warm, wash on hot, rinse on warm. Hemp inserts can be dried on a high temperature setting or hang dry.