Postpartum Night Sweats: Why You’re Waking Up Soaked (& What To Do About It)

There is something deeply humbling about waking up at 3am absolutely drenched. Not a “glow" or a “dewy new mum shimmer.” It's a full-body, changed-the-sheets, why-am-I-like-this situation.

If you’re in the early weeks after birth and suddenly sweating through your pyjamas at night, let's start here: it's normal.

Postpartum night sweats can feel shocking if no one warned you about them. But they are far more common than we talk about.

What Are Postpartum Night Sweats?

Postpartum night sweats are episodes of excessive sweating in the early weeks after birth, most noticeable at night. For some women, it’s mild. For others, it’s full pyjama change territory.

Night sweats after birth are a normal part of your body adjusting after pregnancy — even if they feel intense.

Why Do Postpartum Night Sweats Happen?

Postpartum night sweats happen because your body is doing two big things at once:

1. Hormone Drops After Birth

Oestrogen and progesterone drop sharply after birth, and that sudden hormone drop after birth affects your body’s internal thermostat.

Your body has been running on pregnancy settings for nine months. Now it’s recalibrating — quickly.

2. Fluid Shifts and Post-Birth Water Retention

During pregnancy, you retain more fluid. After birth? Your body goes, “Cool. We don’t need this now.” And it releases it — often through sweat.

For about a third of women, this shows up as noticeable postpartum night sweats in the early postpartum period. It can also happen during the day, but night time tends to be when it really announces itself.

If you had an IV during labour (especially for a long time), you might notice it more intensely because of the extra fluid. It’s not glamorous, but it’s totally normal.

How Long Do Postpartum Night Sweats Last?

For most women, postpartum night sweats settle within the first couple of weeks.

If your night sweats after birth:

• Feel extreme
• Continue beyond two weeks
• Are paired with fever
• Come with a racing heart
• Leave you feeling unusually anxious, shaky or persistently overheated

It’s worth checking in with your GP or midwife.

Occasionally, postpartum thyroid shifts can show up like this — and they’re very treatable. You never need to “just cope” if something feels off. Trust your instincts.

How To Cope With Postpartum Night Sweats

From one sweaty mum to another.

1. Prepare Your Bed

Have:

• A towel underneath you or a mattress protector
• A spare set of pyjamas within arm’s reach

This isn’t dramatic. It’s smart.

Postpartum is not the time for stubbornness.

2. Hydrate (Even If It Feels Counterintuitive)

When you’re sweating after having a baby, it can feel strange to drink more. But your body is recalibrating. Hydration supports recovery, fluid balance and — if you’re breastfeeding — milk production.

Keep a big water bottle within reach. If you’re pinned under a sleeping baby (which you probably are), add a straw. It genuinely helps.

Try:

• Lemon water
• Coconut water
• A splash of grapefruit or cucumber
• A pinch of good sea salt if you’re sweating heavily

Also... make sure you're eating nourishing meals. Especially if you’re breastfeeding.

Under-eating or skipping meals can stress your system further and make those 2am wake-ups feel more intense. Stable blood sugar matters more than we talk about in postpartum.

3. Replace Electrolytes

When you sweat, you lose more than water.

Electrolytes support muscle function and recovery (your uterus is still contracting back down in those early weeks).

Simple options:

• Coconut water
• Lemon water with a pinch of salt
• Celery juice, if that’s your vibe

Nothing fancy required. Though there are some good electrolyte concentrates available if that feels supportive.

4. Consider Gentle Herbal Support (If Appropriate)

Some herbs are traditionally used in postpartum recovery and fluid balance.

But — and this matters — not all herbs are breastfeeding-friendly.

If you’re considering herbal supplements, speak to a qualified practitioner first. Postpartum is not the time for random internet capsules (tbh, I’m not sure there’s ever a time for that).

A Gentle Reframe

Night sweats are uncomfortable. Yes.

But they are also evidence of something extraordinary.

Your body is recalibrating after building and birthing a human. It is shifting hormones, regulating fluids, establishing milk supply, repairing tissues, recovering blood loss.

And somehow you’re expected to do all that while soothing a newborn at 2am.

Of course your body is working this hard. Of course it’s loud about it.

It just did something monumental.

If You’re In It Right Now

Have your partner change the sheets. Drink water. Eat properly. Go gently.

Postpartum night sweats are messy, warm, leaking, healing proof that your body is adjusting.

And if you’re awake anyway at 3am — well, you know where the cookies are. 

Need a Little Extra Support?

The early weeks after birth are intense — hormonally, physically, emotionally.

If you’re navigating postpartum night sweats, feeding around the clock, and trying to remember to eat, gentle nourishment matters.

Milk it cookies are baked weekly and designed with postpartum recovery in mind — oats, flaxseed, brewer’s yeast, and slow energy for long nights.

👉 Order Milk it cookies

Written by Mel Brittner: doula and postpartum nutrition consultant