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Sleep Science

Here is what researchers actually know, what they still don't, and how the finding might change one small part of your morning.

How the science reaches the app

Riso turns wake-up research into concrete alarm behavior.

Wake facts are useful only when they change the next morning. These guides connect sleep inertia, light, sound habituation, sleep debt, and body timing to the app choices users can actually make.

Sleep inertia

Use missions, wake checks, and low-decision routes instead of expecting instant judgment at the alarm.

Body timing

Use consistent wake targets, Night Clock, and morning-light missions without pretending one alarm fixes a schedule.

Sound habituation

Use a tested sound plus proof. A new ringtone helps less if the off button stays beside the pillow.

Sleep debt

Use Riso to protect realistic mornings, not to force unsafe sleep restriction.

Choose your starting point

What part of the morning needs help?

Meet Riso

Make tomorrow morning harder to abandon.

Riso keeps ringing until you finish a wake-up mission. AI-assisted proof, movement, focus, or a configured scan replaces one sleepy tap.

See AI proof →