Homo Consumericus
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How does glycine lower sleep requirements?
Specifically this was the article which arrested interest: The Effects of Glycine on Subjective Daytime Performance in Partially Sleep-Restricted Healthy Volunteers.
Participants reported less negative influence of 25% sleep reduction 3 days in a row and performed better on tests with 3g before bed than placebo group. Caution though; n=7.
Continued searching revealed quite a few articles on how glycine improves sleep quality through different mechanisms (possibly enabling reduction of sleep quantity): Glycine for Sleep: The Amino Acid of Your Dreams.
Is it a desirable change?
Well, yes, since it's too hot to sleep much anyways and there's too much daylight to want to.
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