What happens when you don't sleep enough

Sleep deprivation does more than make you tired. It tends to wear down mood, concentration and patience. Small setbacks start to feel bigger, and the things you'd normally shrug off start to stick. You may feel more tearful, more irritable or just completely flat. That's not a sign you're failing at this, it's what happens to most people running on too little sleep. Sleep loss is also one of the recognized risk factors for perinatal mood and anxiety disorders. That doesn't mean poor sleep causes these on its own. But the link is established enough that protecting sleep is treated as a real part of postpartum mental healthcare, especially for anyone with a history of a perinatal mood or anxiety disorder, bipolar disorder or postpartum psychosis. It's also why bringing up sleep with your healthcare provider is a normal, expected part of postpartum care, not an overreaction. Providers are encouraged to ask "How are you sleeping?" at routine check-ins for exactly this reason, so raising it yourself is just answering a question they’re likely to ask anyway. And if sleep itself is the problem — for example lying awake when you want to be sleeping — counselling or therapy services focussed on postpartum wellbeing, including cognitive behavioural therapy for insomnia (CBT-I), may be worth exploring.

If sleep loss is showing up alongside low mood, anxiety or irritability that doesn't ease, that's worth raising with a care provider.

Rest as its own kind of recovery

Rest doesn't need sleep to count. Lying down without dozing off, dimming the lights, sitting still for a few minutes, asking someone else to complete tasks that need to be done —- all of it counts, and all of it has real recovery value, even when sleep barely happens. One helpful way to think about rest is to break it into types: physical, mental, sensory, creative, emotional, social and spiritual. The point isn't to chase all seven, but to figure out which type of rest would help day to day. Some days your body just needs to lie down. Other days, what actually helps is a few quiet minutes alone, or a real conversation with someone who gets it. Use the categories below to find what might fit how you're feeling right now:

Physical rest is for your body, which includes sleep, but also stretching, lying down or simply sitting still.

Mental rest is giving your mind a break from constant problem-solving.

Sensory rest means stepping back from screens, noise and bright light.

Creative rest comes from anything that sparks curiosity or imagination.

Emotional rest is space to feel what you're feeling without managing it for anyone else.

Social rest is time with people who fill you up rather than drain you.

Spiritual rest is whatever connects you to something bigger than the day-to-day, whether that’s community, meaning or quiet reflection.

Small, realistic ways to build in rest

"Rest when the baby rests" sounds nice, but it rarely works out that way. Rest doesn't need a scheduled window. It can fit into moments that already exist: during a feed, in the few minutes after a handoff, in the gap between one task and the next. A few minutes with the lights low and nothing to do. Stepping outside without bringing a task with you. A coffee, drunk while it's still warm. "The first time I sat down for ten minutes instead of doing the dishes, I felt like I was getting away with something. I wasn't. I was just resting." — Anonymized, 6 weeks postpartum

Planning for support, day and night

Getting rest after birth means you have support, and support works better when it’s planned rather than hoped for. Naming a specific task: "Can you take the 2 a.m. feed tonight?" or "Can you handle dinner this week?" gets you further than waiting for someone to notice what you need.

For partners and support people: Asking the birthing parent one open-ended check-in question goes a long way. So does taking on a task you know they would want you to do.

Splitting night feeds or early shifts, where that's possible, protects everyone's sleep. Not every family can divide nights evenly — solo parents, and those exclusively breastfeeding, often can't split things the same way, and that's not a shortfall. Coverage can look different: a daytime nap while someone else watches the baby, a support person taking an early shift, or just trading off who handles which part of the routine.

When and how to reach out for more support

Sleep loss that comes with low mood, anxiety or irritability that won't ease is worth raising with a care provider, not something to ride out alone. You don't need to know exactly what's wrong to reach out. A provider check-in, postpartum support group or service that connects you to mental health support near you are all reasonable first steps, not a last resort.

Talk to someone today

Our Service Finder connects you with perinatal mental health support, including providers and same-day options near you. You don't need to know what's wrong to use it.

Rest and sleep may both feel limited right now, but small moments still matter. Choose one way to reduce your load today: ask for help with a task, try one small type of rest, or reach out to a provider or support service if things feel hard.

This article was developed using sourced educational content from Canadian Perinatal Mental Health Trainings CPMHT, and informed by the collective knowledge and expertise of CPMHT professionals and Karen Clarke, BA, MSW, RSW, Doula Open Book Doula, Counselling and Consulting Services, as well as the following cited research and clinical practice guidelines: