SleepShred
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Run one-variable self-experiments

Trackers tell you how you slept, not why. Finding the why is your quest.

Everyone has the ability to run self-experiments. Start by changing one thing. Is it your bedroom temperature? Your partner? Sensitivity to light? Exercising too late? Eating too late? Caffeine after noon? One at a time.

Stack wins: none of the individual levers (lavender, kiwis, sound machines, magnesium) will knock you out on its own; each has a small documented effect and you're looking to accumulate them.

The Lab tab implements exactly this: a baseline window, an intervention window, one variable, and a comparison of total sleep, morning feel and resting heart rate. The Day log feeds the 'with vs without' comparisons that tell you what to test next.

Sources · 4

Oral magnesium supplementation for insomnia in older adultsMah J, Pitre T · 2021Magnesium shortened sleep onset by ~17 min; evidence quality low-to-moderate — cheap and safe, not miraculous.Effect of kiwifruit consumption on sleep quality in adults with sleep problemsLin HH, Tsai PS, Fang SC, Liu JF · 2011Two kiwis one hour before bed for 4 weeks improved onset, duration and efficiency — the study behind Galpin's kiwis.Effect of inhaled lavender and sleep hygiene on self-reported sleep issuesLillehei AS, Halcón LL, Savik K, Reis R · 2015Lavender inhalation plus sleep hygiene improved sleep quality more than hygiene alone — a small, safe 'stackable win'.Self-monitoring in weight lossBurke LE, Wang J, Sevick MA · 2011Consistent self-monitoring of diet and weight is one of the strongest predictors of weight-loss success — the 'baker' approach.

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Partner, travel & environmentSleep, appetite & fat lossSupplements & melatonin

Frequently asked questions

Run one-variable self-experiments?

Trackers tell you how you slept, not why. Finding the why is your quest.

Is SleepShred free?

No. SleepShred Pro is $4.99 per month or $29.99 per year, with no free trial and no ads. Everything stays on your iPhone.

Track it, don't guess it

SleepShred turns this research into a 20-second daily habit: log your night, see which of your own behaviours move your sleep, and screen for the disorders nobody diagnoses.

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Educational summary of published research, not medical advice. Screening scores are not diagnoses. If a score is elevated or you feel unwell, talk to a clinician.