my experience with the machine is i can't get to sleep and if and when i do doze off i wake up with nightmare that the machine is strangling me and i am pulling it off. the luxury of giving it 3-4 weeks is for those who do not have to drive and work. not sleeping makes me dangerous to be around. for one thing sleepwalking gets worse and then i might pick up a weapon and use it on someone in the house with me. and, like dr smith, the docs don't believe me when i tell them i sleepwalk. they did not even believe when they saw it on video because the brain waves were not what they expected. docs can be a close minded bunch. now that i have thyroid cancer all i have to do for insomnia is forget my meds. sleep like a baby. wonder if the insomnia was the cancer all along.