This worked really well for me. I had trouble opening my eyes at the end and fell back to sleep. Usually I use the 15 min version, which may be better for me as I've never 'overslept' it. I'm usually in my desk chair, this time I lay on the floor under my desk. Maybe that was the difference.
hehe, memories of the Seinfeld episode where George had a bed built into his desk...
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