[TuringNYC]

>> I wish I could make it happen again, but I've never been successful with inducing this.

Same here. But there are some things that help me getting into this state: Dont be hungry, dont be thirsty, ensure to use the restroom beforehand -- basically, get rid of nagging distractions so you can focus on just mental state. Then work on getting to the edge of sleep. It happens to me sometimes on the subway if I'm coming home late or on a bus trip where i've starved myself of sleep beforehand (usually in the winter, cozy in a overcoat.)