How to wake up earlier without feeling terrible

To wake up earlier without feeling terrible, move your bedtime earlier first, then shift both bedtime and alarm by about 15 minutes every few days until you reach the time you want. Get daylight soon after you get up, put one alarm across the room, and keep the new wake time on weekends too.

What usually fails is the obvious approach: setting the alarm an hour earlier and hoping your body goes along with it. It mostly doesn't, and the reasons tell you what to do instead.

Why an earlier alarm on its own doesn't work

Your body runs on an internal clock that decides when you feel sleepy and when you feel alert. It is set mostly by light and by routine, and it changes slowly. If you go to bed at the same time as always and set the alarm an hour earlier, two things happen.

• You lose an hour of sleep. For most adults, the American Academy of Sleep Medicine recommends at least seven hours a night. An earlier alarm with an unchanged bedtime simply takes the hour out of that, and the tiredness builds up over the week.
• Your clock still thinks it is night. The alarm goes off before your body has started getting ready to wake, so you surface groggy and slow. That heavy feeling in the first minutes after waking is called sleep inertia, and it is worse when you wake from deep sleep or at a time your clock doesn't expect.

There is also a pull in the wrong direction. In most people the body clock runs a little longer than 24 hours, so drifting later is easy and moving earlier takes steady effort. That is why one early morning is fine and a whole new routine is hard.

How long does it take to start waking up earlier?

Plan on a couple of weeks to move an hour, and longer if you want to move more. Shifting in small steps lets your clock keep up, so you are not lying awake at a bedtime your body isn't ready for. Many sleep specialists suggest moving by 15 to 30 minutes at a time and holding each step for a few days.

Here is what that looks like for someone who wants to go from waking at 7:30 to waking at 6:30:

If a step feels rough, stay on it for a few more days before moving on. Going slowly costs you a week. Going too fast usually means giving up.

Move your bedtime first

The morning is decided the night before. To pick a bedtime, start from the wake time you want and count back the time in bed you need: the sleep itself plus a little time to fall asleep. If that comes to about eight hours and you want to be up at 6:30, lights out is around 10:30, and the wind-down starts an hour before that.

The hard part is getting to bed at that time, especially if the evening is the only part of the day that feels like yours. A few things make it easier:

• Close the laptop at a set time. Work that runs into the last hour before bed keeps your mind busy long after the lid is down.
• Dim the lights and the screen. Bright light in the evening tells your clock it is still day. On a Mac, turn on Night Shift in System Settings > Displays > Night Shift and schedule it from sunset to sunrise, and turn the brightness down as the room gets darker.
• Watch the late coffee. Caffeine stays in your body for hours. An afternoon cup can make an earlier bedtime feel impossible without you connecting the two.
• Keep the last hour predictable. The same few steps in the same order tell your body what comes next. A wind-down routine for screen workers builds that hour step by step.

The first ten minutes after the alarm

How you spend the first few minutes decides whether the new time sticks.

Put one alarm across the room

One alarm, out of reach, so that turning it off means standing up. Snoozing feels kind but gives you a few minutes of broken, light sleep rather than real rest, and many people find it leaves them groggier than getting up at the first alarm. If you use an iPhone, the Clock app's Alarms tab shows a Sleep | Wake Up alarm at the top on recent versions, linked to the sleep schedule in the Health app, which can also start a wind-down before bed.

Get daylight early

Light is the strongest signal your body clock gets, and light early in the day is what pulls the whole cycle earlier. Go outside within the first hour, even for ten minutes, or have breakfast by a window. Daylight on a cloudy morning is still far brighter than a lamp.

Give sleep inertia a few minutes

Feeling slow for a while after waking is normal and passes. Don't judge the new schedule by how you feel in the first ten minutes. Drink a glass of water, move around, open the curtains, and decide how the morning went an hour later.

Should you keep the same wake time on weekends?

Yes, or close to it. Many sleep experts suggest keeping weekend wake times within about an hour of weekday ones. A long Sunday lie-in moves your clock later, so Sunday night you lie awake and Monday morning undoes the progress. The chronobiologist Till Roenneberg and his colleagues named that pattern social jet lag, and it is one of the usual reasons an earlier routine falls apart after a week or two.

If you are short of sleep by Saturday, a nap of 20 minutes or so after lunch does less harm to the new schedule than sleeping until ten. Why a consistent bedtime matters goes into how weekends move the clock.

Can a night owl become a morning person?

Partly. Your natural timing, or chronotype, comes partly from your genes and shifts with age: teenagers tend to run late, and many people drift earlier as they get older. Light and routine can move a night owl earlier, sometimes by quite a lot, but some people will never feel bright at 6 AM, however steady they are.

If that is you, aim for a wake time you can keep every day rather than the earliest one possible. A steady 7:30 usually beats an unsteady 6:00.

If you have shifted slowly for several weeks and still can't fall asleep until very late, or you wake up worn out even after a full night, talk to a doctor. Trouble falling asleep at a normal hour and daytime exhaustion can have causes that a doctor or a sleep specialist can look into.

Let your Mac remind you about the evening

Notchpals can't wake you up. It makes no sound and it lives on your Mac, not on your nightstand. Where it helps is the evening, which is where earlier mornings are won. Put a Sleep character such as Bramble, the shy hedgehog, in your crew and give it your bedtime, during setup or later in Settings. Sometime in the last hour before that bedtime, Bramble peeks out of the notch.

BrambleUm... bedtime is soon. Maybe start tidying up? I'm gathering my leaves.

Keep working through the hint and Bramble comes back once the bedtime has passed, and again if the night slides past 1 AM. If the laptop is already shut, it has nobody to visit, which is rather the point.

The morning end is quieter. One member of your crew is the host, and the host greets you on your first time at the Mac between 5 AM and noon. Make Bramble the host and the greeting is waiting when you sit down on the first of your earlier mornings.

BrambleOh... good morning. I uncurled extra early so I could say it first.

Each time you move a row down the table above, move the bedtime in Settings by the same 15 minutes. The evening nudge then keeps pace with the plan instead of reminding you about last week's bedtime.