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Pregnancy Night Sweats in Pregnancy | Pregnancy Power Hour
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Pregnancy Night Sweats in Pregnancy

Experiencing night sweats during pregnancy is a common experience, often linked to your body's significant hormonal and physiological changes from early pregnancy through postpartum.

2 min read

Quick answer

Experiencing night sweats during pregnancy is a common experience, often linked to your body's significant hormonal and physiological changes from early pregnancy through postpartum.

On this page
  1. Understanding the "Why" Behind Pregnancy Night Sweats
  2. When to Expect Night Sweats During Pregnancy
  3. Finding Comfort and Ease

Also called: pregnancy hot flashes at night

Pregnancy night sweats, often described as pregnancy hot flashes at night, are a common experience for many expecting parents, affecting roughly 35% of pregnancies. This can be a surprising shift, especially if you're used to sleeping comfortably, but it's a normal physiological response to the profound changes happening within your body.

Understanding the "Why" Behind Pregnancy Night Sweats

These nocturnal warm flushes are primarily driven by a combination of factors. Your body undergoes significant hormonal changes, which influence your internal thermostat. Additionally, your basal metabolic rate increases, meaning your body is generating more heat as it works hard to support your growing baby. A substantial increase in blood volume—up to 50% more—also contributes to feeling warmer, as there's more fluid circulating throughout your system. These shifts are a testament to the incredible work your body is doing, and understanding them can bring a sense of calm and clarity.

When to Expect Night Sweats During Pregnancy

For many, night sweats are most pronounced during the first trimester. This early phase of pregnancy is a time of rapid hormonal adjustment and significant physiological shifts, so it's not uncommon to find yourself waking up feeling warm and damp. While they may ease for some as pregnancy progresses, they can return with intensity immediately postpartum. This second peak is often due to rapid fluid shifts as your body works to shed the extra blood volume and fluids accumulated during pregnancy. Just as some individuals might experience Heartburn at 35 Weeks Pregnant or Heartburn at 36 Weeks Pregnant as their body adjusts, night sweats are another way your system communicates its changes.

Finding Comfort and Ease

While night sweats are a normal part of the pregnancy and postpartum experience for many, there are gentle, practical adjustments you can explore to support your comfort. Creating a cool sleeping environment can make a significant difference. You might consider using moisture-wicking sleepwear to help manage the dampness, and some parents find dual-zone bedding helpful for regulating temperature. These are simple, doable shifts that can help you feel more at ease during this season of change. Managing symptoms like night sweats can be a focus, similar to how some navigate Heartburn at 37 Weeks Pregnant to find relief.

Remember, your body is communicating with you, and these experiences are often part of a healthy pregnancy. Focusing on supportive, evidence-based approaches allows you to make informed decisions about your comfort.

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Common questions

Why am I experiencing night sweats during pregnancy?+

Night sweats are often driven by significant hormonal changes, an increased basal metabolic rate, and a substantial increase in your blood volume during pregnancy.

When do pregnancy night sweats typically ease?+

While they can be pronounced in the first trimester, they often ease, though they may return immediately postpartum as your body adjusts to fluid shifts.

Brittany Nance

“Pregnancy is under-supported at every week. This is the kind of clear, calm guidance I give my one-on-one clients — and the questions worth taking back to your provider.”

Brittany Nance · Pregnancy Wellness Consultant · full-spectrum doula

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Written by Brittany Nance, Pregnancy Wellness Consultant· BADT Full Spectrum Doula · Founder, Pregnancy Power Hour
Last reviewed July 1, 2026

This is evidence-informed education from a birth-doula perspective, not medical advice. Always discuss your individual situation with your prenatal care provider.

On this page

  1. Understanding the "Why" Behind Pregnancy Night Sweats
  2. When to Expect Night Sweats During Pregnancy
  3. Finding Comfort and Ease

Keep reading

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  • RelatedPregnancy Night Sweats at 22 Weeks PregnantAt 22 weeks pregnant, night sweats are a common experience, often linked to your body's significant increase in blood volume and metabolic changes.
  • RelatedPregnancy Night Sweats at 27 Weeks PregnantAt 27 weeks pregnant, night sweats can be a common experience, often linked to your body's significant hormonal shifts and increased blood volume.
  • RelatedPregnancy Night Sweats at 23 Weeks PregnantAt 23 weeks pregnant, night sweats are often linked to your body's 50% increase in blood volume and metabolic changes, leading to a warmer baseline temperature.
  • RelatedPregnancy Night Sweats at 25 Weeks PregnantAt 25 weeks pregnant, night sweats can become a noticeable symptom, often linked to your body's significant hormonal shifts and increased blood volume.