6:30 AM · still dark

An alarm clock that mimics a sunrise to wake you up.

Light rises slowly in your room, like a real sunrise, then a soft sound joins in—so you wake up gently, and waking up every day is not a fight. No app, no AI. Just light, then sound.

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Founding price ₹3,499

For early waitlist members.

In development — first units expected 2027. No payment now.

Arc sunrise alarm clock in olive, its warm dome glowing on a dark bedside table

Drag the slider to see it wake

6:30 7:00

Alarm set to 7:00 in this demo — yours is whatever you choose.

Last night, you promised yourself you’d get up on time. Then the alarm rings—and half-asleep, the promise feels too hard to keep. So you snooze. And snooze again.

Arc can’t force you out of bed—it just makes it far easier to want to.

How Arc wakes you

The last thirty minutes of sleep, done right.

Whatever time you set your alarm for, here’s what happens in the half hour before it. The page you’re scrolling brightens the way your room will.

30 min before your alarm · The light begins

A sunrise, not a lamp.

A slow curve of warm light, calibrated to mimic real dawn—not a lamp switched on, a sunrise. It builds so gradually you don’t notice the moment it started; you only notice you’re surfacing.

♪ ♫ ♪

Minutes before · A sound joins in

One sound, chosen well.

One gentle sound joins the light near your alarm time—not to wake you, but to finish what the light already started. No library to scroll through, no decision to make while half-asleep.

Your wake time · Awake, actually awake

Up on time. Ahead of the day.

You wake at the time you intended, without the jolt—and without a phone in your hand before your feet touch the floor. Enough time for the slow coffee. Enough time to begin the day instead of chasing it.

The morning starts working for you, not against you.

The evidence

Waking to gradually increasing light—rather than an abrupt alarm—has been shown to reduce morning grogginess and improve alertness: in a peer-reviewed study, artificial dawn light significantly decreased subjective sleepiness and increased activation compared to waking in the dark.

Gimenez et al., Journal of Sleep Research (2010)

Knobs and buttons. No app, no AI.

Nothing to open. Nothing to pair.

A dial, two buttons, a lever—directly on the clock. Set it once from the object itself, then let it do its one job.

Rotary knob

Turn to set the time or the volume. One motion, no menu.

Clock & alarm buttons

Press once for the clock, once for the alarm. Nothing else to configure.

Press knob

One press stops the alarm—easy to find, even half-asleep.

Alarm toggle

See it, don’t guess it. Switch it off for the weekend without a second thought.

If you can’t find it half-asleep and in the dark, it’s the wrong control.

Join the waitlist In development — first units expected 2027. No payment now.

Why Crest builds this way

Hardware that asks less of you.

Most things you own want something from you—a charge, an update, a glance, a decision. We make the opposite: quiet, physical objects with good defaults, so your attention stays where it belongs.

Better than necessary. Never more than needed.

Before you decide

The honest answers.

Why pay for this when my phone alarm is free?

A phone alarm is free, but it costs you a jolt, and the temptation to check it the moment it’s in your hand. Arc does one job—waking you gently, on your schedule—with nothing else competing for your attention before you’re even out of bed.

Why not just rely on actual sunlight?

Sunrise doesn’t know your alarm time—it shifts by over an hour across the year, so it rarely lines up with when you actually need to wake. And in most Indian apartments, windows face the wrong way, get blocked by the next building, or stay curtained for privacy and noise anyway. Arc gives you the same effect, on your schedule, every single day.

What happens if the power goes out at night?

Arc keeps the correct time through a power cut. If the cut happens mid-ramp, the light picks up from where it should be based on the time—it won’t skip or restart the curve.

Your wake time · full light

Be first to the morning.

Join the waitlist to lock in the founding price and hear from us before the first batch ships. No payment, no obligation—just your email.