i just found out about a three part grinder, what a newby huh lol. i have troubles with sleeping due to having a bad back and just alot going on in my working life. i discovered the answer to my sleep issues just last night. over a three day period i collected the crystals from my meds and found out that was the trick, i packed a bowl the same way that i would regularly but this time added some keif. wow this is magic stuff not only did i sleep well but had no issues waking up stiff in the back pure magic if i knew about this i could have saved alot of peoples ears from listening to me complain about back and neck issues, and if you got sleep issues i recomend keif :) good times and cheers.