What Having a Kid Did to My Sleep Cycles (And How I Fixed It)

I have a PhD in sleep. And I still spent the first six months of Leo's life waking up to a vibrating phone under my pillow.

Go ahead, laugh. I did, eventually.

You'd think knowing the science would protect you. It doesn't. When you're sleeping in forty-five-minute chunks, your brain doesn't care about your credentials. It just wants to survive. And survival mode, for me, looked like a lot of bad decisions.

Leo was born in March. March 2019, I think? Honestly, the first few months are a blur. I remember the hospital, I remember bringing him home, and then I remember nothing until maybe August. That's what severe sleep deprivation does. It erases time.

Before Leo, I had my sleep dialed in. Bedtime at 10:45 PM, wake-up at 6:30 AM. Seven hours and forty-five minutes, give or take. I felt good. I felt like I had figured out this whole adult sleep thing. Then the baby arrived, and my beautiful schedule exploded.

For the first two months, Leo woke up every two to three hours. Normal. Expected. What I didn't expect was how hard it would be to fall back asleep after each feeding. I'd feed him for twenty minutes, burp him for ten, put him down, and then lie there for forty-five minutes, wide awake, thinking about all the things I wasn't getting done. By the time I fell asleep, he'd be waking up again.

I was getting maybe four hours of sleep per night, in chunks of forty-five to ninety minutes. That's not sleep. That's torture.

A fellow sleep coach — not a client, someone I know from conferences — told me about the "sleep when the baby sleeps" advice. I wanted to throw my phone at her. The baby sleeps in ninety-minute chunks. By the time I fall asleep, he's waking up. And also, someone has to wash the bottles, do the laundry, pay the bills, eat something that isn't cold pizza.

So that advice is useless for most parents. Don't feel bad if you can't follow it.

Around month four, I hit a wall. I was so exhausted that I started hallucinating. Not crazy hallucinations — just seeing movement in my peripheral vision that wasn't there. I'd be walking down the hallway and think I saw a cat run past. We don't have a cat. That's when I knew I had to stop pretending I could handle this on my own.

I sat down and looked at the data. Not from a tracker — I couldn't be bothered to wear one. Just a notebook where I scribbled down bedtime, wake-up, and how many times Leo woke up. What I saw was ugly.

Over a typical week, I was getting about twenty-eight hours of sleep. That's four hours per night. My pre-baby baseline was fifty-four hours. So I was running a weekly deficit of twenty-six hours. Twenty-six hours. That's more than a full day. No wonder I was hallucinating cats.

You can calculate your own sleep debt as a new parent, but fair warning: the number might make you cry.

I cried. Not gonna lie. I looked at that number and thought "I can't do this." But I didn't have a choice. So I made a plan.

First, I stopped trying to fall asleep immediately after feeding Leo. That was my biggest mistake. I'd lie there for forty-five minutes getting frustrated, which made it harder to fall asleep. Instead, I started getting out of bed after feeding him. I'd go to the living room, read a boring book — not my phone, the blue light keeps you awake — and wait until I actually felt sleepy. Sometimes that took twenty minutes. Sometimes an hour. But when I went back to bed, I fell asleep in under ten minutes. That cut my "time awake in bed" from forty-five minutes to about fifteen. That's thirty extra minutes of sleep per night.

Doesn't sound like much. But over a week, that's three and a half hours.

Second, I started going to bed at 8:30 PM. Not 10:45. 8:30. That felt insane at first. I'm not a child. But Leo's first long stretch of sleep was usually 8 PM to midnight. If I went to bed at 8:30, I could get three and a half hours of uninterrupted sleep before his first wake-up. Those three and a half hours were pure deep sleep. My body grabbed every minute of it. I woke up at midnight feeling almost human.

Third, I accepted that my sleep would be split for a while. I stopped trying for a single seven-hour block. That wasn't happening. Instead, I aimed for three and a half hours at night — 8:30 PM to midnight — plus two naps during the day — one when Leo napped in the morning, about ninety minutes, and one when he napped in the afternoon, another ninety minutes. Total: five and a half hours. Not great. But way better than four.

The naps had to be timed perfectly. If I napped too late in the afternoon, I couldn't fall asleep at 8:30 PM. I used the bedtime finder to figure out my nap windows.

I plugged in my 8:30 PM bedtime, and the tool told me my last nap should end by 3 PM. Any later, and I'd be stealing sleep from the night. So I made sure my afternoon nap was done by 3. That meant waking Leo up from his nap if he slept too long. Felt wrong. But it worked.

By month six, Leo started sleeping longer stretches. He'd go from 8 PM to 4 AM without waking. That's eight hours. I cried again, but happy tears. I shifted my bedtime to 9:30 PM, slept until 4 AM — six and a half hours — then took a twenty-minute nap when he napped in the morning. Total: about seven hours. I felt like a new person.

Someone asked me recently if I would have done anything differently. Yes. I would have stopped pretending I could do it all alone. I would have asked my husband to take one feeding per night, even if that meant pumping. I would have hired a night doula for two nights a week if we could afford it. I would have told my friends "I can't come to brunch for six months" instead of showing up exhausted and miserable.

But you don't know what you don't know. And sleep deprivation makes you stupid.

If you're in the thick of it right now — newborn, toddler who doesn't sleep, whatever — here's what I want you to know. It gets better. Not fast. But it gets better. Your baby will eventually sleep longer. You will eventually sleep again. Until then, lower your standards. Let the laundry pile up. Order takeout. Say no to everything that isn't survival. And if someone offers to help, say yes. Don't be a hero.

One more thing. The advice from sleep trainers — the "cry it out" people — made me feel like a failure because I couldn't let Leo cry. I'm not judging anyone who does. But for me, it wasn't an option. So I had to find a different path. That path was slower and harder, but it worked for us. You don't have to follow anyone's rules. You just have to find what works for your family.

Once Leo started sleeping through the night, I used the sleep cycle calculator to find a bedtime that aligned with his natural rhythm. Because putting a kid to bed at the wrong time is pointless. They'll just lie there.

That calculator is still on my phone. I don't need it as much anymore, but when school schedules change or daylight savings hits, it's a lifesaver.

P.S. Leo is seven now. He still wakes up sometimes — nightmares, thirsty, whatever. Last week he came into our room at 3 AM and said "Mom, I had a dream that the floor was lava." I walked him back to bed, tucked him in, and went back to sleep in under five minutes. That's progress. Not perfect. But progress.