Tonight has a target
Hespera turns caffeine, stress, naps, screens, and exercise into a concrete sleep window.
HesperaSleep planning for real nights
Plan the night before the night plans you.
Hespera turns caffeine, screens, stress, naps, exercise, and morning feedback into a calm plan for tonight and evidence you can trust later.
local-day planning honest skipped-night handling evidence before charts
Tonight
Charts
History
Tonight02:20suggested lights-out
Sleep debt5 h 12 mtracked across the week
What Hespera gives you
A practical sleep system, not another vague wellness feed.
Morning feedback keeps it honest
Rate the night, correct what changed, or skip data that would make the model noisy.
Patterns wait for enough signal
Charts unlock when they can explain behavior, not when a dashboard needs more widgets.
Caffeine is treated like a curve
Each dose decays toward bedtime so the recommendation is specific to your day.
The nightly loop
Small inputs. Cleaner plans. Better evidence.
Check the day
Log the factors that actually changed tonight’s plan.
Set the window
See the lights-out target, caffeine cutoff, and wind-down shape.
Close the night
Confirm, correct, or skip without poisoning the history.
Read the evidence
Let Hespera name the habits repeatedly helping or hurting sleep.
Product screens
Built for the moments when you actually check sleep.
Last night, sleep debt, tonight’s target, and the next useful action stay in one calm surface.
Tonight
Charts
History
Plan
Why it helps
It keeps noisy nights from becoming fake insight.
Hespera separates missed nights, corrected nights, rough nights, and clean nights. That keeps the analytics layer useful as the history grows.
sleep debtenergy forecastcaffeine curvesleep hoursnight qualitywake rhythmweek shapefactor evidencepattern strength
The instrument
Designed around your real local day.
The sleep window, after-midnight hours, wake time, caffeine curve, and next-day energy stay in one frame, so the recommendation feels specific instead of generic.
FAQ
Questions before trying Hespera.
What does Hespera do?
Hespera turns evening factors and morning feedback into a practical sleep plan, sleep debt tracking, energy forecasts and personal sleep analytics.
Is Hespera a sleep tracker?
Hespera is a sleep planner first. It helps you plan tonight, close the previous night honestly and understand patterns as enough signal builds up.
How does Hespera handle sleep debt?
Hespera keeps sleep debt in the same local-day frame as caffeine, wake time and bedtime so missed sleep can be read as part of the week instead of a disconnected number.
Does Hespera work without a wearable?
The product is built around quick check-ins and corrections, so it can stay useful even when a night has to be entered manually.
Make tonight less random.
Hespera is built for people who want better sleep without turning bedtime into homework.