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Features/Sleep

Vuoi essere più sano? Impegnati a dormire meglio

Migliora la qualità del sonno come mai prima d'ora grazie a un monitoraggio sofisticato, intuizioni facili da leggere e uno smart ring senza soluzione di continuità.

Buy now See a night
SleepRing 78%
Last night · 23:05 → 06:38 79sleep score
7h 33m
Last night's story

A shorter night than usual, but a well-shaped one. Deep sleep landed above your baseline.

Deep sleep +12%1 disturbance
One night, minute by minute

Sleep is not one thing, so it is not scored as one.

Sleep score

79of 100

Asleep

7h 33m

Deep

1h 32m

REM

1h 50m

Awake

18m

23:19 asleep
03:12 deepest
04:40 woke briefly
06:38 smart alarm
23:0501:0003:0005:0006:38
AwakeLightDeepREM

Deep sleep clusters early, REM later. That shape matters more than the total — which is why the score reads the shape, not just the hours.

How it measures

Un laboratorio del sonno in un piccolo e comodo anello

Precise PPG heart rate, respiratory rate, SpO2 and motion sensors along with a machine learning powered app will help you understand and improve your sleep over the long term.

Kira non dorme mai, ma tu dormirai meglio

Kira learns about your baselines to give you a daily personalized sleep quality and tells you exactly what parameters impact your sleep to improve them. Circular measures not only how long you sleep, but the time spent in each stage, your circadian rhythm, your heart rate metrics and respiratory rate.

  • Heart rateBeat to beat through the night, plus the lowest point and when it arrived.
  • HRVOvernight variability, the clearest signal of how recovery actually went.
  • Respiratory rateBreaths per minute, and any deviation from your own nightly average.
  • Blood oxygenSpO₂ sampled through the night. Patterns worth discussing with a clinician, not a diagnosis.
  • Skin temperatureDistance from your baseline — an early marker of illness and cycle phase.
  • MotionMovement and stillness, which separates awake from light sleep.
The science, in three parts

Ti presentiamo i 3 pilastri del sonno

Qualità

Studia quanto tempo trascorri in ciascuna delle fasi del sonno: Leggero, Profondo, REM e Risveglio. Il sonno profondo permette il recupero fisico, mentre la fase REM è utile per la memoria, il processo mentale e la creatività. Sai quanto tempo trascorri in ciascuna fase? È una durata ottimale? Kira ti aiuta a migliorare e ottimizzare queste fasi.

Durata

Circular osserva quanto hai effettivamente dormito rispetto alle tue personali esigenze in termini di durata del sonno. Inoltre, Circular calcola la durata delle interferenze durante il sonno e assegna un punteggio alla qualità del tuo riposo.

Ritmo circadiano

La scienza ha dimostrato la necessità di seguire un ciclo luce/buio durante il sonno, di essere in linea con il proprio cronotipo naturale e che più si è costanti nel seguire il proprio ritmo, meglio si dorme. Kira propone delle raccomandazioni che si adattano al tuo cronotipo per aiutarti ad essere più costante.

Timing

Scoprire il proprio Cronotipo, uno strumento che cambia la vita

I cronotipi sono legati all'orologio interno e ai geni. Hanno un effetto diretto sulla tempistica delle attività quotidiane e sul rendimento nello svolgerle. Scoprite il vostro Cronotipo e gli orari ottimali per svolgere le vostre attività.

Your day, as your chronotype orders it

00:0006:0012:0018:0024:00
Asleep

Your window, based on your own last two weeks.

Wake and rise

Light exposure here sets the whole day's rhythm.

Productivity zone

The hours your chronotype does its best thinking.

Caffeine window

Closes early enough to clear before your bedtime.

Movement

When training costs you least and returns most.

Wind-down

The ring nudges you here, adjusted for the day you had.

Waking up

Risvegliarsi meglio per iniziare al meglio la giornata

Waking up in a light sleep stage helps to limit sleep inertia. If you are tired of waking up in a bad mood but would rather wake up with energy then Circular will help you.

Smart, noninvasive and silent at the same time. Circular can study your sleep and smoothly wake you up during the light sleep stage, without disturbing your surroundings thanks to silent vibrations.

Smart alarm · a window, not a time

06:38 woke you here
07:00 set
06:0006:3007:00
  • You setA time, and how wide the window before it can be.
  • The ring picksThe first light stage inside that window.
  • You feelSilent vibration on the finger. Nobody else wakes up.
  • You seeA wake-up score, and the minutes you gained.
How to read it

Nine numbers behind one score.

Each one is measured against your own baseline, learned over your first two weeks of wear. Tap any of them in the app for what it is, why it matters and what moves it.

  • Deep sleepPhysical repair. Clusters in the first half of the night.
  • REM sleepMemory, learning and mood. Longer stretches towards morning.
  • Real sleepTime actually asleep against time in bed.
  • DisturbancesHow often the night broke, and for how long.
  • TranquilityHow still you were — restlessness costs recovery.
  • Time to fall asleepMinutes from lights out to the first stable stage.
  • Circadian rhythmHow closely last night matched your own schedule.
  • Sleep debtAccumulated shortfall against your personal need.
  • Heart rate in sleepAverage, lowest point, and when it arrived.
  • BaselineEvery number above is read as a distance from yours.
Questions the ring answers

Quanto ne sai veramente del tuo sonno?

Sai quanto si dovrebbe dormire?
Qual è la reale durata del tuo sonno?
Quanto dura il tuo ciclo di sonno?
Quanti sono i cicli di sonno?
Qual è il tuo programma di sonno ottimale?
La tua durata del sonno rem?
Come impiegare meno tempo per addormentarsi?
Do you have sleep inertia or disturbed breathing at night?
Che effetti ha il tuo sonno attuale sulla tua energia?
The routine

Fai un biohack per dormire meglio

Make the most of your day by improving your sleep journey

1

Track your sleep each night and trends over time.

2

Understand your sleep and learn about the parameters that positively or negatively impact your sleep quality and how it correlates with your days.

3

Build better habits for better rest.

4

Wake up with energy with a silent & smart alarm clock.

Cosa ti stai perdendo dormendo in modo poco efficiente

01

Sistema di difesa contro le malattie e le malattie cardiovascolari

02

Produttività, capacità cognitiva e concentrazione

03

Stress, umore e gestione del peso

Questions

Before you wear it to bed.

More in the help centre.

Roughly two weeks. The ring spends that time learning your baselines — resting heart rate, HRV, temperature, how long you actually need — because a score against a population average tells you very little.

That is the reason the ring exists. Nothing on the wrist, nothing strapped to your chest, and the finger gives a cleaner optical signal than a watch pressed into a pillow.

The ring tracks blood oxygen and breathing rate through the night and can show patterns worth discussing with a clinician. It is not a diagnostic device.

No. The vibration comes from the ring itself, so the phone can stay in another room — which is usually better for the night anyway.

Yes, if you switch nap tracking on. Naps are scored separately and folded into your sleep debt rather than into last night's score.

No. Staging, the nine metrics, chronotype, the smart alarm and Kira's recommendations are included with the ring, permanently.

Seguente

Anche l'attività fisica che svolgi ha un grande impatto sulla tua energia

Learn how
Woman checking the Circular app while wearing the ring
Conosci te stesso. Il cerchio si chiude.

Start with one night.

Wear it to bed tonight and read the morning.

Buy now Get a sizing kit
Woman checking the Circular app while wearing the ring
Conosci te stesso. Il cerchio si chiude.

Start with one night.

Wear it to bed tonight and read the morning.

Buy nowGet a sizing kit