Guide

The first year with a baby, for two people who used to sleep

Everyone warns you about the sleep. Nobody warns you that the person you married will, for about a year, become a coworker on the worst project of your life. Here’s what year one does to a couple, why most of it is normal, and one small habit that keeps the two of you on the same side.

Reviewed by Albert Wong, PhDClinical psychologistLast reviewed September 2026About this site

Call them Lena and Josh. The baby is four months old. Lena hasn’t slept more than three hours in a row since June. Josh went back to work at two weeks and comes home to a wife who hands him the baby without a word and goes upstairs. They haven’t had a conversation that wasn’t about the baby since the baby. Last night Josh said “I feel like you don't even see me anymore” and Lena laughed, not kindly, and said “I don't see anything anymore,” and both of them lay awake afterward in the dark, six inches apart, feeling entirely alone.

What the research says, plainly

Relationship satisfaction drops for most couples in the first year after a first child. Not for some. Most. The couples who study this, including the Gottman lab, put the figure around two-thirds. It rebounds for many, but not automatically, and the couples who don’t rebound are usually the ones who thought the drop was a sign that something was wrong with them rather than something that happens to nearly everyone.

So the first useful thing to know, at four months, exhausted, is that you aren’t failing. You’re in the part.

What year one does

It removes every buffer at once. Sleep, which is what let you be patient. Time alone, which is what let you miss each other. Sex, which is what reminded you that you were more than colleagues. And it adds the single most consuming project either of you has ever run, with no training, on no sleep, with a boss who screams. Two people under that load don’t have a marriage problem. They have a load problem, and the marriage is where the load shows.

The specific fight is almost always about fairness. Who is more tired. Who does more. Whose work counts. Lena keeps score because scoring is how an exhausted mind protects itself; Josh keeps score for the same reason. Both scores are accurate and both are beside the point, because the point is that there’s more work than two people, and no amount of dividing it fairly makes it enough.

The thirty-second thing

Once a day, one of you says a sentence that puts you on the same side of the load instead of across it. Not a compliment, which feels like a bribe at four months. An acknowledgment: this is brutal and you’re doing it. Josh tried it on a Tuesday, in the kitchen, holding the baby: “This is the hardest thing we've ever done and you're carrying most of it.” Lena didn’t say anything. She sat down at the table and cried for about a minute and then said “thank you” and that was the first conversation they had had in months. Thirty seconds, once a day, and the scores stop mattering, because someone has finally said out loud that the load is the enemy and not the other person.

What else helps, in order

Sleep, traded, not shared. One full night each per week, whatever it costs. Two half-rested people are worse than one rested one.

Ten minutes that aren’t about the baby. After the baby is down, before the phones. It will be about the baby anyway, mostly. The ten minutes is the point, not the topic.

Say the resentment before it sets. “I'm angry that you get to leave the house” is survivable at four months. At fourteen months it has become a personality.

When it’s more than year one

If one of you isn’t sleeping even when you could, or can’t feel anything, or is having thoughts that frighten you, that’s postpartum depression or anxiety and it happens to both parents; it’s treatable, and it comes before couples work. Talk to your doctor or a therapist of your own this week. And if the year-one fight has become the only fight you have, a couples therapist who works with new parents can do in a few sessions, by video, after bedtime, what the two of you can’t do at 3 a.m. Read The mental load for the part of this that outlasts the baby.

Keep reading

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General information, not clinical advice; the couples described are composites, not real clients. Listings on this site are maintained by independent practices. If you are in immediate danger, call 911; the 988 Suicide & Crisis Lifeline is available by call or text any time.