Sleep Tracker
The sleep tracker app
that tells you why.
SailToFuture's sleep tracker connects every dimension of your sleep to the rest of your life — mood, habits, energy, and focus. No wearable required — log your sleep manually in seconds. See what's actually causing the bad days and get AI sleep coaching to fix it.
One number. The full picture.
Your sleep score combines duration, timing consistency, sleep efficiency, and quality factors into a single number you can track week over week. Not a wearable number — your own honest log.
Tap into any night's detail to see every factor that contributed. Over time, patterns emerge that you can actually act on.
14 tools built around your sleep.
Sleep score
A single number that summarises your night: duration, efficiency, interruptions, and quality factors all combined.
AI sleep coach
Analyses your patterns and makes specific, data-backed suggestions — not generic tips.
Chronotype quiz
Discover your natural sleep window and the optimal times for your focus work, exercise, and wind-down.
Sleep debt tracker
See how much sleep you've missed this week and visualise how long recovery takes.
Dream journal
Log your dreams immediately on wake. Searchable, private, and never shared.
Pre-sleep routine builder
Build a wind-down sequence and get a reminder 30 minutes before your target bedtime.
Sleep environment log
Track room temperature, light, noise, and device use — and see how each correlates with your sleep score.
Caffeine cutoff
Based on your sleep target, the app calculates your last safe caffeine window and nudges you when you're close.
Bedtime nudge
A gentle notification at your ideal bedtime — not an alarm, a suggestion.
Alarm suggester
Suggests wake times aligned with natural sleep cycles to reduce grogginess.
Power nap timer
10, 20, or 26-minute nap timer with a gentle wake and a cooldown block.
Weekly sleep summary
Average sleep, best night, worst night, trend direction, and AI-generated one suggestion for next week.
Sleep mood correlation
See how your sleep quality maps to your mood scores. The pattern is often surprising.
Sleep goal setter
Set a weekly sleep goal and track consistency — not just average hours, but how often you hit your window.
Dream Journal
Log dreams the moment you wake — before they fade. Searchable, private, and never shared. See patterns across your dream entries over weeks and months.
AI Sleep Coach
Not advice. Analysis.
Your AI sleep coach looks at your actual sleep logs — not generalisations — and finds the specific factors dragging your score down. It connects sleep quality to mood, habits, and exercise data that's already in the app.
Then it makes one concrete suggestion. Not a list of ten things to change — one thing that will move the needle most given your current patterns.
This week's insight
Your average sleep score dropped from 74 to 61 this week.
On the 4 nights you used your phone after 10pm, your sleep
efficiency was 71%. On the 3 nights you didn't, it was 89%.
Try a 10pm screen cutoff for one week and see if your score
recovers. I'll track it for you.
— Your AI Sleep Coach