Sleep during pregnancy: what changes trimester by trimester
Sleep needs increase slightly during pregnancy, especially in the first trimester.
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Specific tips
- 1st trimester: intense fatigue is common, linked to progesterone.
- 2nd trimester: often the most restful period.
- 3rd trimester: sleeping on the left side is generally recommended.
- A pregnancy pillow can reduce lower back pain.
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Useful tools
Use our bedtime calculator or wake time calculator to turn these recommendations into concrete times.