Ask HN: Most effective and "non-invasive" morning wake up alarm method?

18 points by gangorgasm - 329 Days, 22 Hours ago Hacker News

Seriously folks. Those with evening circadian rhythms will understand (and those without might appreciate) the question. Throwing this out there for your help on this: Is there an effective yet least jarring alternative to early morning alarms than the traditional alarm clock? Are we doomed to starting the day with the equivalent of a gunshot?

Interested in any and all alternatives that might exist, even in learning about morning routines that work for you