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What is sleep-only automation?

Sleep-only automation delivers insulin automatically for people who use pens. It works while you sleep, and you take it off when you wake.

A man resting in bed with his glucose sensor visible on his arm

Automation for the night, and only the night

During the day, nothing changes. You keep your pens, your CGM, and your therapy routine. At night, while you can't check your CGM, the system reads it and delivers small doses of insulin if you need them.

The hours you can’t manage yourself

When asked what they wanted most from their diabetes care, people put three things at the top, and all three happen at night: no lows overnight, sleep that diabetes does not interrupt, and waking up at the glucose level they want.1

79% of adults with type 1 diabetes on multiple daily injections and CGM say diabetes interrupts their sleep at least occasionally.2

When you’re asleep, you can’t check your CGM or act on it. The night carries the most risk and leaves you the least ability to respond. Luna Health analyzed a published trial in adults with type 1 diabetes who use insulin pumps. It compared pump therapy without automation, automation just at night, and automation 24/7. Our conclusion: >80% of the glucose benefit of 24/7 closed-loop automation happens in the evening and overnight hours.3

So the idea is simple: automate where the risk is highest and the burden of wearing something is lowest. That’s while you sleep.

People who choose pens and plan to keep them

Luna is a sleep-only automation system. We designed it for people who take insulin with pens, use a CGM, manage their days well, and don't want to wear a pump around the clock.

That describes many people on injections. 65% of adults with type 1 and 53% with type 2 on multiple daily injections say the time it takes, the complexity, discomfort, not wanting a device on the body, or keeping it private are highly impactful reasons for not using a pump.4 Only 5% of adults on multiple daily injections and CGM say they are highly or extremely likely to start a pump within the next 12 months.5

How it differs from a 24/7 pump

Traditional insulin pumps are designed to be worn all day and all night. Sleep-only automation is for people who have chosen pens and want to keep using them during the day.

You fill Luna from the pen you already use. It has no daytime component, nothing to carry, and no daytime pump alarms. It isn’t designed to move anyone on to a 24/7 pump.

What nights with Luna look like

What doesn’t change

  • Your pens and your insulin routine during the day
  • Your CGM
  • Your clinician and your daytime plan
  • Your days: there’s nothing to wear once you’re up

Common questions

Is sleep-only automation a pump?

It uses an insulin pump, but not a 24/7 one. You wear Luna only while you sleep and take it off when you wake. It works alongside the pens you already use instead of replacing them.

Do I have to change my insulin, pens, or CGM?

You don’t have to change your insulin or pens. You fill Luna from the rapid-acting insulin pen you already use, and you keep using your pens during the day. Luna is being developed to work with FDA-cleared iCGM sensors, but the list of supported sensors isn't confirmed yet.

Do I keep taking my basal insulin?

Yes. Luna does not replace your basal insulin—the background insulin you take once or twice a day. Overnight, its small boluses cover glucose rises.

Does it help with mealtime insulin?

No. Luna works only while you sleep. Mealtime and daytime doses stay with you and your pen.

When can I get Luna?

Not yet. Luna is an investigational device and is not available. Sign up for updates, and we’ll let you know more when we can.

Where can I find more answers?

Our FAQ pages go deeper. Clinicians can also find answers to questions about evidence, workflow, and patient selection in the clinician FAQ.

Patient FAQ

Clinician FAQ

Sources

  1. dQ&A, PWD Survey Results: Luna Patient Segmentation & Jobs To Be Done, January 2026, n=583, cited in dQ&A, Luna Product Positioning with HCPs and JTBD, March 2026, n=22, slide 9.
  2. dQ&A, PWD Survey Results: Luna Patient Segmentation & Jobs To Be Done, January 2026 (fieldwork 13–19 December 2025), slide 53; adults with type 1 diabetes on multiple daily injections and CGM, n=219; diabetes-related interruption occasionally or more often in a typical week.
  3. Luna Health analysis of Kovatchev BP, Kollar L, Anderson SM, et al. Evening and overnight closed-loop control versus 24/7 continuous closed-loop control for type 1 diabetes: a randomised crossover trial. Lancet Digit Health. 2020;2(2):e64–e73. doi:10.1016/S2589-7500(19)30218-3. Adults with type 1 diabetes using insulin pumps; n=80 analysed.
  4. dQ&A, PWD Survey Results: Luna Patient Segmentation & Jobs To Be Done, January 2026, n=583, slide 41.
  5. dQ&A, PWD Survey Results: Luna Patient Segmentation & Jobs To Be Done, January 2026 (fieldwork 13–19 December 2025), slide 39; adults with type 1 or type 2 diabetes on multiple daily injections and CGM, n=406. 5% chose highly or extremely likely to start a pump in the next 12 months; 95% did not. This is not a measure of whether they are considering a pump.
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