It seems like theres a lot of people around me with insomnia so i have a lot of people to experiment with including myself :-) . One thing that i have found is that if your a female and you put the castor oil underneath the breasts where all the lymph is (especially the sore areas), it will intensify the affect. If your really toxic you might feel a little blaa the next morning but nothing a little sweat in a hot bath wont fix, but for some reason it works wonders at getting someone to sleep.