In stock · ships within 1 working day · 30-night money-back guarantee
For adults 45+ · no melatonin

Fall asleep fine but wake up at 3am?

Calmer evenings. Deeper sleep. Quieter nights. One drink before bed. Try it for 30 nights.

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In stock · ships within 1 working dayin 1 day

That’s $1.33 a night. No device, no lock-in. See what sleep gadgets cost ↓

Free bonus: the Sleep Through Guide (PDF)Emailed straight away, so you can start tonight while your pouch ships $6.99FREE

30-night money-back guarantee from the day your pouch arrives.

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US delivery $2.99, free on 2+ pouches

  • No melatonin
  • Non-habit-forming
  • Magnesium bisglycinate + citrate, glycine & L-theanine

What’s in it and what it does

222mg

Magnesium bisglycinate + citrate

Supports muscle relaxation and helps ease nighttime muscle tension.

1,500mg + 150mg

Glycine + L-theanine

Supports a calm, relaxed mind at 3am and deeper, more restorative sleep.

0mg

No melatonin, no sedatives

Supports staying asleep through the night, with no morning grogginess and nothing to build a habit on.

What people spend

Broken sleep gets expensive

Before trying a nightly drink, a lot of people try the gadgets. Here’s what those cost.

Temperature-controlled mattress cover

$2,000+

up front, plus a monthly subscription

Cools or warms each side of the bed through the night.

Sleep-tracking ring

$250–$400

up front, plus a monthly membership

Measures how you slept, so you can see the wake-ups.

Sleep Through

$1.33/night

no device, no subscription needed

A nightly drink formulated for the second half of the night. 30-night money-back guarantee.

Buy Sleep Through

Typical retail prices for each type of product, October 2026. They’re different kinds of product doing different jobs, and some people use more than one.

How it works

One stick. Three parts of the night.

Most sleep products are built for the first twenty minutes. Sleep Through is built for the hours after you fall asleep.

  1. 21:00

    Wind down

    Stir one stick into 100ml of water an hour before bed. A small ritual that closes the day.

  2. 03:00

    Sleep through

    Formulated for the second half of the night, to support deeper, less interrupted sleep through the hours when the 3am wake-up tends to happen.

  3. 07:00

    Wake restored

    No melatonin and no sedatives, so there’s nothing to sleep off. Magnesium helps reduce tiredness and fatigue.

Why this formula

222mg

magnesium in every stick, as bisglycinate + citrate

Magnesium on its own is the usual approach. We built Sleep Through as a set: magnesium, two amino acids and the electrolytes that normal day-to-day fluid loss draws down.

Five actives, every dose printed on the pack. No proprietary blends and no melatonin.

Two forms of magnesium in every stick. Magnesium bisglycinate (magnesium bound to the amino acid glycine) with magnesium citrate, for 222mg of magnesium per serving.

  • Supports normal muscle function Magnesium · Potassium
  • Helps reduce tiredness and fatigue Magnesium
  • Supports fluid balance Sodium
  • Supports normal function of the nervous system Sodium · Potassium
Per 8g stickAmount
Magnesiumbisglycinate + citrate
222mg
Glycinean amino acid
1,500mg
L-Theaninean amino acid found in tea leaves
150mg
Sodium
130mg
Potassium
90mg

No melatonin · no caffeine

Tastes like

Three flavours, all light

Mixed into a small glass of water, so it drinks in a few sips.

Lemon & Lime

Bright and sharp, with a clean citrus finish.

Mixed Berries

Soft and fruity, the gentlest of the three.

Watermelon

Fresh and lightly sweet, like a summer evening.

Every pouch is mixed: 10 sticks of each flavour.

Compare

Sleep Through vs melatonin gummies

FeatureSleep ThroughTypical melatonin gummies
What’s in itMagnesium, glycine, L-theanine, sodium, potassiumMelatonin, a hormone
What it’s forDeeper, less interrupted sleep in the second half of the nightFalling asleep faster
Next morningNo melatonin or sedative, so nothing to sleep offVaries by person and dose
Habit-formingNoCheck with your pharmacist

General comparison by product type. Individual products vary, so check the label.

How to use

Ten seconds at the end of the day

  1. 1

    One stick

    Tear open one 8g stick.

  2. 100ml

    Into water

    Stir into 100ml of cool or room-temperature water.

  3. 1hr

    Before bed

    Drink it about an hour before you go to sleep.

Jon and Clare Bairam, co-founders of Circadian Signal
Jon & Clare Bairam, co-founders, Circadian Signal
Meet the founders

Two people, one bed, both awake at 2am.

We turned 45 and our sleep started to break up, so we built the thing we couldn’t find.

Somewhere around 45, Clare and I started waking at the same hour. Falling asleep was never the issue. It was 2 or 3am, wide awake, a mind that wouldn’t switch off, then a long wait to drift back.

When we looked at what was on the shelf, almost everything was built around sedation and falling asleep fast. Falling asleep wasn’t our problem, so none of it fitted. Hardly anything was made for the second half of the night.

So we made our own: an 8g stick with 222mg magnesium (as bisglycinate and citrate), 150mg L-theanine and 1,500mg glycine, plus sodium and potassium, stirred into water before bed. Every dose is printed on the pack, so you can see exactly what you’re taking.

Jon & Clare

FAQ

Questions, answered

Anything else? Get in touch by email or WhatsApp and a founder will reply.

How does Sleep Through work?

It’s a nightly drink built for the second half of the night rather than for falling asleep. Each stick combines magnesium, which supports normal muscle function and helps reduce tiredness and fatigue, with glycine, L-theanine, and sodium and potassium, which support normal function of the nervous system. There’s no melatonin and no sedative.

What does it taste like?

Light and fruity. Every pouch is mixed: ten sticks each of Lemon & Lime, Mixed Berries and Watermelon.

When should I take it?

Stir one stick into 100ml of water and drink it about an hour before bed. One stick a day. It works best as part of a regular evening routine.

What’s in it?

Each 8g stick has 222mg magnesium (as magnesium bisglycinate and magnesium citrate), 1,500mg glycine, 150mg L-theanine, 130mg sodium and 90mg potassium. No melatonin, no caffeine and no proprietary blends.

How fast is delivery?

Sleep Through is in stock and orders dispatch within 1 working day. The Sleep Through Guide PDF lands in your inbox straight away, and we’ll email your tracking link the moment your pouch ships. Delivery is a flat fee: £1.99 in the UK, $2.99 in the US (usually 6 to 8 days) and €1.99 in the EU. Orders of 2 or more pouches ship free.

What if I change my mind, or it doesn’t work for me?

Two promises. Before dispatch, you can cancel any time for a full refund: just get in touch. After delivery, you have a 30-night money-back guarantee, starting the day your pouch arrives. If Sleep Through isn’t for you, contact us within 30 nights and we’ll refund you.

Do you ship to the US, UK and EU?

Yes. Prices show in your local currency, and you can switch currency at the top of the page. Checkout is handled securely by Shopify.

Will it upset my stomach?

Most people have no trouble. Magnesium can loosen stools in some people, especially at first. If that happens, try half a stick for the first week. If you have a digestive condition, check with your doctor before you start.

Is it habit-forming?

No. There’s no melatonin or sedative in it, and you can stop whenever you like.

I take medication. Can I take it?

We can’t give personal medical advice. If you take regular medication, or you’re pregnant or breastfeeding, check with your doctor or pharmacist before starting any new supplement.

Contact

Still got a question?

About Sleep Through, your order or the guide. It comes straight to us, and we usually reply within two working days.

Prefer email? contact@circadiansignal.com

We use your details only to reply, as set out in our privacy policy.

Start sleeping through tonight.

30 sticks plus the free Sleep Through Guide PDF for $39.99. Have a promo code? Enter it at checkout.

In stock · ships within 1 working day · 30-night money-back guarantee

Buy Sleep Through