If you ride with an Apple Watch, your recovery and your sleep are free. Permanently.

You track load. You know what a hard week looks like in the numbers, and what happens when you ignore it.

Sleep almost never gets that treatment. It ends up in a wellness app next to a step count, as something you glance at and feel vaguely bad about. Which is strange, because it changes your riding more than most of what you do track.

A 2022 review in Sports Medicine pooled 227 performance results across 69 studies, comparing normal sleep against nights of six hours or less. Average drop in performance: 7.6%. That's a whole category of fitness, lost to a Tuesday night.

So the data matters. The problem is that nothing ever does anything with it. Your watch collects all night, and in the morning you get a coloured bar chart of sleep stages that tells you nothing you can act on.

That's the gap Summit fills. And because your watch is already doing the measuring, reading it properly costs you nothing — free, permanently. No trial, no counter running out.

Two principles, before the numbers

Summit uses the heart-rate measure that actually tracks fatigue. There's more than one way to measure heart-rate variability and they don't say the same thing. Summit uses RMSSD — the one sports science uses for daily readiness, because it responds fastest to the things you care about: a hard block, a short night, a bug you haven't noticed yet, one glass of wine too many. It's the measure that moves tomorrow morning, not next week.

And it judges you against you. There's no such thing as a good HRV number in the abstract — two riders can be 60 ms apart and both be perfectly recovered. So Summit doesn't compare you to anyone. It learns what a normal night looks like for you, and tells you where you sit against your own body.

The answer is never "your HRV is 42". It's "this is high for you, and yesterday's session landed well".

Reading the night properly

This is the part most apps skip, and it's the part Summit spends the most on. A night isn't one number — a coach looking at your sleep asks four separate questions, and Summit answers all four.

Did you get enough?

Not against eight hours. Against what you needed last night.

Your target isn't fixed, because your need isn't fixed. A hard training block raises it. Falling short of it raises it again. So the number you're chasing this week isn't the one you were chasing last week — which is how a coach thinks about sleep, and how a flat eight-hour goal never will.

And because a deficit doesn't reset at midnight, Summit keeps a running tally of what you owe across the past fortnight — and tells you whether last night paid some of it back or added to it. That's how you catch the slow version of the problem: not one terrible night, but three weeks of forty-minutes-short that quietly flattens your Saturdays.

Was it any good?

Hours are the easy part. Two riders can sleep the same seven hours and have completely different nights.

Summit shows you when each stage of sleep actually happened, laid out on a real clock rather than stacked into a bar — because deep sleep at midnight and deep sleep at six in the morning are not the same night. You see how much of each stage you got against a healthy reference range, how long you spent awake without realising it, and how much of your time in bed was actually spent asleep.

That's where "I was in bed for eight hours" and "I slept for eight hours" stop being the same sentence.

Was it on schedule?

Your body keeps time whether you do or not.

Summit tracks what time you went to bed and got up against your own usual pattern, and shows the drift in minutes. Go to bed at wildly different times and it costs you, even when the hours add up.

It's also the one part of the night you can genuinely decide to change tonight. You can't will your HRV higher. You can decide when to put the phone down.

Is something off?

This is the one riders tell us they didn't expect.

When several of your overnight signals run outside your normal range on the same night — your temperature, your breathing, your blood oxygen — Summit says so. Plainly, and without drama:

It won't tell you what it is, because it doesn't know and neither does your watch. It isn't a diagnosis and it never pretends to be one. But it's the morning you find out that the ride you had planned is a bad idea — usually a day or two before you'd have worked that out on your own.

And then, the verdict

All of that resolves into two numbers, because at seven in the morning you want a decision, not a dashboard: how recovered you are, and how good the night was.

You can act on those in five seconds and never open anything else. Or you can look at the whole thing — including a month of recovery at a glance, so you can tell whether a bad morning is a blip or a direction you've been heading in for three weeks.

It never makes anything up

Worth saying plainly, because plenty of apps do the opposite.

If you didn't wear the watch, Summit shows a gap — not a guess, and not a line drawn between two points to keep the chart tidy. If a night genuinely can't be scored, it says so instead of producing a number to fill the space. And while it's still learning your baseline in the early weeks, it tells you that too.

An invented number is worse than no number, because you'll plan around it.

What it changes

A recovery score you only read is a wellness metric. A recovery score that changes today's session is training.

That difference has been tested on riders like you. A 2019 study in the International Journal of Sports Physiology and Performance took 17 well-trained cyclists and split them for eight weeks: one group followed a fixed plan, the other let daily heart-rate variability decide what each day looked like. The second group improved more — not because they trained harder, but because the hard days landed on the days their bodies could take them.

That's the loop Summit closes. A strong morning and today's session stands, or grows. An average one and it's left exactly as planned — quietly downgrading sessions every time a number dips is how riders lose fitness while feeling responsible. A genuinely bad morning and the hard work comes out, but the time on the bike stays, because on a rough day it's the intensity that costs you, not the hours. Report an illness or an injury and the day stops entirely — and the key session you lost gets rescheduled rather than quietly disappearing.

That last part — the plan rearranging itself around your body — is what Summit charges for. The reading of your body isn't, and won't be. You get the full picture every morning for as long as you use the app, and you're free to make the call yourself.

Most people eventually want the plan to make it for them. We'd rather you get there because the free half proved itself first.

What you need

An Apple Watch you wear overnight, an iPhone, and about a minute of setup.

Three mornings and you'll have your first scores. Give it a month and it knows you well enough that the numbers are genuinely about you and nobody else.

The short version

• Your watch is already measuring this. Summit is what reads it.
• It answers four questions about every night — enough, good, on schedule, anything off — not one vague score.
• Every signal is judged against your own normal, not against an average rider.
• It never fills in a number it doesn't have.
• The full morning analysis is free, permanently. What's paid is the training plan that acts on it.

Your watch has been collecting this every night for as long as you've owned it. The only question is whether any of it ever reaches your training.