See your sleep debt.
The sleep you owe your body from the last 14 nights. Short nights add to it and longer ones pay it back, so one lie-in won’t fix a rough week.

NOYU makes it easy to improve your sleep and your daily energy. It finds what’s limiting your sleep and shows you how to fix it.
Download for iPhoneNo iPhone? Use NOYU on the web.Works with the data you already have.
A few short nights add up, and research suggests that after a while you stop noticing what they cost you. Get the sleep your body needs and you wake up feeling, and training, at your best.
Every morning, once last night syncs, NOYU tells you how it went: your sleep score, how long you slept against what you need, and how much sleep you owe.
The sleep you owe your body from the last 14 nights. Short nights add to it and longer ones pay it back, so one lie-in won’t fix a rough week.
Every day has two peaks and a dip in energy. NOYU maps yours from when you sleep and wake, so you know when you’ll feel sharp and when to start winding down.
Your bed window is the hour you fall asleep most easily, worked out from your wake time and how much sleep you need. NOYU reminds you when to start winding down.
Late coffee, a drink, a late meal. NOYU spots which ones come before your worse nights, reminds you of your last-coffee time and tells you the one change to try first.

Morning light, your last coffee, a hard session, a late dinner: what you do in the day shapes tonight. NOYU reads your sleep alongside your training, meals and how you feel, and points to the parts of your day worth changing.
One app. All of you.

Strength and cardio sessions that fit your goals and recovery, a calendar to plan your week and a summary after every workout.

Log a meal with a photo and see your day against targets that move with your training. NOYU suggests what’s worth changing.

Keep, lose or gain at a pace you choose. NOYU sets your calories, then learns what your body really needs from your meals and weigh-ins.

Your HRV, resting heart rate and battery against your own usual, with your training and day around them. Ask NOYU what a change means.

Try one change for a few weeks, like morning light or an earlier last coffee, and see what it does in your own data.

Training, sleep, recovery and meals in one place, and one conversation with NOYU about all of it.
More questions about NOYU? Browse all FAQs.

Know when to go to bed tonight, and start paying back your sleep debt.