CircadianStack publishes Protocol cards. Every dose carries a citation to the trial it came from. The page you are reading is the short version. The long-form, versioned spec lives at /methodology/v1-2.
Every dose, window, and wavelength claim links to the published trial, Khalsa, Zeitzer, Lockley, Roenneberg, by name, never to a podcast clip or content marketer.
Light therapy lamps measured with a lux meter at 12, 18, and 24 inches. Sunrise alarms measured at pillow distance. Melatonin cited at physiological doses (0.3-0.5 mg) as the default.
Every protocol ships with a Failure modes section: who it is wrong for, where the dose-response relationship breaks, what the trial population missed.
We do not accept payment from lamp manufacturers, supplement brands, or sleep-tracker companies for editorial coverage. Affiliate commissions exist on some links and never change rankings.
Trial readouts and major-label updates trigger a protocol refresh. Updated dates show on every Protocol card.
Stack Score is not a product rating. It is a confidence score for a protocol, morning light at 10,000 lux for 30 minutes, for instance. Five weighted dimensions feed the number, and the tier label tells you how much weight to put on it.
Protocols touching sleep disorders (DSPD, shift work disorder, suspected non-24) carry a reviewer stamp at the top of the page. Reviewers are board-certified sleep physicians or chronobiology PhDs. Names and credentials show up on every reviewed protocol.