Gwern — QS: Sleep↗

I discuss melatonin’s effects on sleep & its safety with research up to 2015 11ya ; I segue into the general benefits of sleep and the severely disrupted sleep of the modern Western world, the cost...

Self-experiment on whether consuming caffeine immediately upon waking results in less time in bed & higher productivity. The results indicate a small and uncertain effect.

Vitamin D is a hormone endogenously created by exposure to sunlight; due to historically low outdoors activity levels, it has become a popular supplement and I use it.

The first night (10/12) involved falling asleep in 30 minutes rather than my usual 19.6±11.9, waking up 12 times (5.9±3.4), and spending ~90 minutes awake (18.1±16.

China & Egypt used wooden pillows; my recreations fail My major experiment the summer of 2009 17ya was experimenting with various polyphasic sleep schedules.

Is sleep affected by the phase of the moon? An analysis of several years of 4 Zeo users’ sleep data shows no lunar cycle.

I discuss my beliefs about Quantified Self , and demonstrate with a series of single-subject design self-experiments using a Zeo.

A randomized blinded self-experiment of the effects of ZMA (zinc+magnesium+vitamin B6) on my sleep; results suggest small benefit to sleep quality but are underpowered and damaged by Zeo measurement...

Modafinil is better, but the problem is that a number of forms are patented, and in addition, it’s a proscribed drug in the US & Canada.

increase from 1 month to 2 months ‘A “reason for stopping modafinil” if applicable question could yield some interesting insight.

The earlier melatonin experiment found somewhat weak effects with >100 days of data, and one would expect that actually consuming 1.