i got molecule K as a freebie a few weeks back and i hardly touch it.i tried it a few time and everytime the effect is the same.i felt tired,drowsy and very sleepy.anyway i couldn’t sleep last night,so i got up and put on 2 sprays(5mcg bottle)and i slept like a baby for 8 hrs straight 
..usually i sleep for only 6 hrs.so there you have it molecule K a heavy sleeping drug,not good for work and social