Quick answer: Pregnancy raises your core body temperature and metabolic rate, which is why so many expecting mothers overheat at night — breathable, moisture-wicking bamboo sheets, pillowcases, and a lightweight throw help regulate that heat and cut down on the waking that comes with it, especially in a warm climate like the UAE.

Why pregnancy makes you sleep hot

From the first trimester onward, rising progesterone increases your basal body temperature by roughly 0.3–0.5°C, and by the third trimester your blood volume and metabolism have climbed even further to support your growing baby. The result is a body that runs warmer around the clock, not just during the day. Layer that on top of Dubai or Abu Dhabi's humidity, and it's easy to see why night sweats, restlessness, and frequent waking are some of the most common sleep complaints expecting mothers report.

Hormonal shifts also make it harder to drift back off after a 3 a.m. bathroom trip. Since hormones aren't something you can control, the most practical lever left is your sleep environment — and bedding is the part of that environment against your skin for eight hours a night.

Trimester by trimester: what changes, and what helps

First trimester

Fatigue is intense, but so is the temperature shift. Many women notice they suddenly need a cooler room and lighter sheets than before pregnancy. Switching to a breathable bamboo sheet set at this stage is a simple change that pays off for the rest of the pregnancy, since bamboo viscose is naturally more breathable and moisture-wicking than cotton or synthetic blends.

Second trimester

Sleep often improves briefly here, but a growing bump means more tossing and turning to find a comfortable position. Soft, smooth fabric against the skin matters more as side-sleeping becomes the norm — a bamboo pillowcase set reduces friction and stays cool under the cheek through the night.

Third trimester

This is when overheating peaks. Extra blood volume, a higher metabolic rate, and a larger body simply generate more heat. Many women also report restless legs or difficulty staying asleep. A lightweight bamboo duvet cover instead of a heavier comforter lets you regulate temperature without kicking off the covers every hour, and a few sprays of Dune Mist™ Pillow Spray on the pillow before bed can help signal to your body that it's time to wind down.

What to look for in pregnancy-friendly bedding

• Breathability: Fabrics that let air circulate, rather than trap heat against the skin, reduce overheating and night sweats.
• Moisture-wicking: Bamboo viscose pulls moisture away from the body, which matters if you experience pregnancy-related night sweats.
• Softness without added chemicals: Skin can become more sensitive during pregnancy, so OEKO-TEX® certified fabric — tested and verified free from harmful substances — is worth prioritizing over anything unverified.
• Lightweight layering: A thinner duvet or a breathable throw blanket you can add or remove is easier to manage than one heavy comforter that's either too hot or too cold.

A few extra sleep tips for pregnancy

• Keep the bedroom slightly cooler than you normally would — many sleep guides suggest around 18–21°C, which is easy to maintain with UAE air conditioning but worth checking against your own comfort.
• Sleep on your side, ideally the left, in the second and third trimesters, using pillows for support rather than lying flat on your back for long stretches.
• Keep a consistent wind-down routine — dimming lights, avoiding screens, and a calming scent on the pillow can all help cue the body for sleep even when it's working overtime.
• Wash sheets and pillowcases more frequently if night sweats are an issue, since bamboo fabric holds up well to regular washing without losing its softness.

Frequently asked questions

Is bamboo bedding safe to use during pregnancy?

Yes. OASISÉ bamboo bedding is OEKO-TEX® certified, meaning it has been independently tested for harmful substances and is considered safe for sensitive and changing skin, which makes it a reasonable choice during pregnancy.

Why do I overheat at night during pregnancy?

Pregnancy increases progesterone, blood volume, and metabolic rate, all of which raise your core body temperature. This is a normal physiological change, though breathable bedding and a cooler room can make it more manageable.

What's the best type of sheet for pregnancy night sweats?

Lightweight, breathable, moisture-wicking fabrics such as bamboo viscose are generally more comfortable for night sweats than heavier cotton blends, flannel, or synthetic microfiber, which tend to trap heat.

Should I change my bedding setup each trimester?

Not necessarily all at once, but many women find it helpful to move toward lighter sheets early on and a lighter duvet or throw by the third trimester, when overheating is usually most noticeable.

Pregnancy is already a season of change — your bedding doesn't have to be one more thing working against your sleep. Explore OASISÉ's bamboo bedding collection and sleep beyond ordinary, even nine months in.