Overheating during pregnancy is extremely common and significantly disrupts sleep at a time when quality rest matters most. Here is why it happens and what actually helps.
Why Pregnancy Makes You a Hotter Sleeper
During pregnancy your blood volume increases by up to 50 percent. Your heart pumps more blood to support the growing baby and this increased circulation generates significantly more body heat. Your metabolic rate also increases during pregnancy as your body works harder to support fetal development. Progesterone levels, which rise dramatically during pregnancy, also raise body temperature. The combination of increased blood flow, higher metabolic rate, and elevated progesterone makes most pregnant women run noticeably hotter during sleep, often from as early as the first trimester.
Why Standard Solutions Are Not Enough
Turning the AC down helps but the heat is being generated internally. Even in a cool room a hot sleeper with elevated pregnancy-related metabolism will overheat under standard bedding. The blanket is the variable closest to your skin and therefore the most direct point of intervention.
What Helps
A lightweight nylon cooling blanket is one of the safest and most effective interventions for hot sleepers during pregnancy. It draws heat away from your skin continuously rather than trapping it, which reduces the environmental contribution to overheating without any chemical or medical intervention. The Stillwell Cloud is Class A certified with no formaldehyde and no fluorescent agents, safe for sensitive skin at all stages of pregnancy. See The Cloud here.
A cooling pillowcase helps with the head and neck which are particularly heat-sensitive. See the Cool Night Pillowcase here.
What to Avoid
Avoid electric cooling systems or water-cooled blankets during pregnancy as the evidence on safety is limited. Avoid ice packs directly against the skin for extended periods. Keep the room well ventilated and use a fan for airflow rather than maximum air conditioning, which can cause dryness that affects respiratory health during pregnancy.
When to See a Doctor
If overheating during pregnancy is accompanied by fever, excessive sweating disproportionate to temperature, or other symptoms please consult your healthcare provider. Fever during pregnancy requires prompt medical attention.