You don’t have trouble falling asleep. You have trouble staying asleep.

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Racing mind. Restless legs. The 3am wake-up.

Sleep Through is a nightly sachet built for adults 45+ whose sleep fragments rather than fails to start — the 3am wake-ups, the racing mind, the restless legs, the leg cramps, the trips to the bathroom. Magnesium, L-theanine and glycine: nothing here to help you fall asleep faster, everything to help you stay there.

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The science behind Sleep Through

Four ingredients, each doing one specific job overnight — not a general-purpose sleep aid.

  • Magnesium · 222mg — supports normal muscle function and normal function of the nervous system through the night.
  • L-Theanine · 150mg — an amino acid naturally found in green tea leaves, associated with a calm, settled mind.
  • Glycine · 1,500mg — an amino acid your body already produces, linked to normal, restorative sleep patterns.
  • Sodium & Potassium · 130mg / 90mg — replace what's lost overnight, supporting fluid balance.
Magnesium abstract molecular diagram

Magnesium

222mg — supports normal muscle & nervous system function overnight.

L-Theanine abstract molecular diagram

L-Theanine

150mg — the calm-mind amino acid, from green tea leaves.

Glycine abstract molecular diagram v2

Glycine

1,500mg — the amino acid your body already makes.

Sodium and Potassium abstract ion diagram

Sodium & Potassium

130mg / 90mg — replace what's lost overnight, supporting fluid balance.

This isn't a melatonin formula — on purpose

Melatonin is built to help you fall asleep faster. If you're lying awake at 10pm unable to drift off, that's the right tool for the job.

Sleep Through is built for a different problem — waking up at 3am and struggling to fall back asleep. That's a maintenance problem, not an onset problem, so we formulated for it specifically. Nothing sedative in the mix.

Products

Sleep Through

Sleep Through

£29.99

Sleep Through - EBOOK Instant Download

Sleep Through - EBOOK Instant Download

£5.00

Built for adults 45+, not a one-size-sleep-fits-all

Sleep Through is formulated specifically for the sleep changes that show up after 45 — not a repackaged general sleep aid.

Not sure if it's right for you? Email jon@circadiansignal.com and we'll help you figure it out.

Get the free Sleep Guide