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How it works

What nights with Luna look like

Luna is sleep-only automation. When you go to sleep, it stays up.

A woman placing a small Luna Capsule on the back of her upper arm, with the Luna box beside her

Here’s how it works

  1. Step 1: The first time

    Enter one setting in the app the first time you use Luna. You don't need to set basal rates, carb ratios, or correction factors.

  2. Step 2: At bedtime

    Fill the Luna Reservoir from the rapid-acting insulin pen you already use. Snap the Reservoir into the Capsule, then apply it to your body.

  3. Step 3: As you sleep

    Luna reads the CGM you already wear and delivers small boluses of rapid-acting insulin if you need them.

  4. Step 4: When you wake

    Take Luna off when you get up, then go about your day exactly as you do now. Your pens cover the day, as always.

Luna iOS app dashboard showing a current reading of 103 mg/dL with a glucose trend graph, active insulin from Luna, and tabs for Dashboard, Session History and Settings

The goal is a good morning

When asked what matters most about overnight and morning glucose, people put avoiding lows first, followed by waking up in their desired glucose range. Those who named a wake-up number averaged about 100 mg/dL.1

That’s the goal Luna is designed to support.

A smiling woman with a glucose sensor on her arm swimming in an outdoor pool
During the day, there’s nothing to wear. Image generated for illustration.

The day is still yours

Your insulin pens already fit the way you live. You can swim, exercise, shower, and get dressed without thinking about a device attached to your body.

Luna keeps it that way. You wear it only while you sleep.

The algorithm behind Luna

Luna Eclipse® reads your CGM while you sleep to determine when and how much insulin you need.

More about the algorithm behind Luna

Your questions, answered

For clinicians: how Luna works

Sources

  1. dQ&A, PWD Survey Results, January 2026, Data on File.
A new chapter for overnight

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