R package for estimating dim-light melatonin onset (DLMO) using the hockey-stick method

melafit: High-precision 24h melatonin profile analysis. Features bimodal skewed baseline cosine fitting (Van Someren & Nagtegaal, 2007) and a robust cost function (Gabel et al., 2017) for superior convergence, even with sparse data.

A windows app that makes the screen display only in red tones in order to lessen eye strain and the screen's impact on one's melatonin.

A simple calculator for melatonin dosing for children, based on the recent International Pediatric Sleep Association and American Academy of Neurology guidelines.

Quick's (1974) photoreceptor pooling model — fitting melatonin suppression and PLR spectral sensitivities to multi-receptor models

Physiologically based pharmacokinetic-pharmacodynamic (PBPK/PD) model of oral melatonin with circadian oscillator coupling, virtual population simulation, and interactive Shiny app for personalized dosing.

Sleep trackers tell you how you slept. SleepArchitect predicts it before you go to bed, by running Borbely's two-process model over today's caffeine, alcohol, workouts, light, and meal timing.