Feeling sweaty and tangled in sheets that feel like a sauna? You’re not alone. Pregnancy hormones, extra blood flow, and that growing bump can turn up the heat fast, making it harder to stay cool at night.
The fix? The right bedding. With breathable, lightweight fabrics and a few smart sleep tweaks, you can keep cool, comfy, and rested. This guide breaks down the best bedding for hot sleepers, plus midwife-approved tips to help you (and your bump) sleep easier through every trimester.
Why Hot Sleep Happens (Especially in Pregnancy)
Feeling too warm at night isn’t just about the weather. During pregnancy, your body’s temperature naturally rises due to hormonal shifts, especially increased progesterone and blood flow, both of which can leave you feeling extra toasty.
Add in the warmth of pregnancy pillows, bedding, and a snuggly doona, and it’s no surprise many mums-to-be feel like a “human hot water bottle.”
Other common reasons for overheating at night include:
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Warm or humid bedroom environments
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Synthetic bedding materials that trap heat
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Tight or heavy pyjamas
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Poor airflow or low mattress breathability
According to Healthdirect Australia, keeping your sleep environment cool and well-ventilated plays a key role in improving rest and reducing nighttime discomfort.
Choosing the Right Bedding for Hot Sleepers
When it comes to bedding for hot sleepers, it’s all about breathable, moisture-wicking, and temperature-regulating materials that help your body stay balanced through the night.
Here’s what to look for:
1. Bamboo Bedding: The All-Round Cooling Hero
If there’s one material hot sleepers rave about, it’s bamboo.
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Naturally moisture-wicking, so it draws sweat away from your skin
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Hypoallergenic and antibacterial, perfect for sensitive pregnancy skin
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Temperature-regulating, cool in summer, cosy in winter
Bamboo bedding feels silky-soft without trapping heat like synthetics. It’s one of the best all-season choices, especially if you share a bed (since partners rarely sleep at the same temperature!).
Expert tip: Pregnancy, Birth and Baby notes that natural fibres can help regulate temperature and reduce sleep disruption during pregnancy making bamboo a smart, skin-friendly pick.
2. Linen Bedding: Light, Textured, and Ultra-Breathable
Made from flax fibres, linen is a top choice for natural airflow.
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Breathes easily and absorbs moisture quickly
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Dries fast, perfect for humid nights
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Gets softer with every wash
Fun fact: Linen can absorb up to 20% of its weight in moisture before feeling damp, helping hot sleepers stay dry and comfortable all night.
It’s also incredibly durable, so it’ll last well beyond your pregnancy and looks effortlessly beautiful in any bedroom.
3. Tencel (Lyocell) Bedding: Silky, Sustainable, and Cool
Tencel is made from sustainably sourced wood pulp and offers:
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A smooth, gentle texture on sensitive skin
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Excellent airflow and moisture control
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Natural odour resistance
If you love a silky feel but want something more breathable than polyester or satin, Tencel sheets are the sweet spot.
4. Cotton Bedding: A Classic for a Reason
Good-quality 100% cotton bedding (especially long-staple or organic) is lightweight, soft, and breathable.
Opt for a percale weave; it’s crisp and matte, unlike sateen, which can feel heavier and trap heat.
Cotton is also easy to layer, so you can adjust it as temperatures change through the seasons.
Layer Smart, Sleep Cool
Your bedding materials are only half the story; layering matters too.
Here’s how to layer like a pro, Hot Sleeper:
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Start with a breathable mattress protector (try bamboo or Tencel).
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Use lightweight sheets skip the thick duvets in summer.
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Choose a light doona or blanket made from bamboo or cotton.
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Avoid memory foam toppers, which retain heat.
Midwives recommend keeping your room between 18–20°C, the sweet spot for sleep comfort and pregnancy wellbeing (Healthdirect Australia).
Pregnancy Pillows & Cooling Sleep Support
If you’re navigating pregnancy alongside night sweats or reflux, your pillow setup matters just as much as your bedding.
The Sleepybelly Pregnancy Pillow is designed with breathable materials and adjustable side panels to keep airflow around your bump and upper body. It supports side-sleeping (the position recommended by health professionals) and helps reduce reflux, a big win for hot sleepers.
Pair your pillow with Sleepybelly’s Three-Piece Maternity Pyjamas made from breathable cotton, perfect for layering and staying cool through temperature swings.
Caring for Your Cooling Bedding
Keep your bedding fresh and effective with these quick care tips:
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Wash in cold or warm water (avoid hot cycles).
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Skip heavy fabric softeners; they coat fibres and reduce breathability.
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Air-dry when possible for freshness and longevity.
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Rotate bedding seasonally; lighter weaves for summer, heavier for winter.
Small steps that keep your sleep setup naturally cool and comfy.
Beyond Bedding, Other Tips to Stay Cool at Night
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Keep curtains closed during hot days to block heat.
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Use a fan or air purifier to boost airflow.
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Take a lukewarm shower before bed.
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Stay hydrated but sip small amounts before sleeping.
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Apply Sleepybelly Magnesium Body Cream to relax muscles and promote calm before bed.
Expert Insight
Temperature regulation is one of the most overlooked parts of pregnancy sleep.
Your body’s already working overtime, so breathable bedding and light sleepwear are simple, effective ways to support deeper, more restorative rest. Natural fibres like bamboo and linen are ideal for pregnant women because they help balance heat and moisture without chemicals or added stress.
Final Thoughts
Finding the best bedding for hot sleepers isn’t about fancy cooling tech; it’s about natural, breathable materials and smart layering that keep you comfortable and supported.
Pregnancy already brings enough surprises; your sleep shouldn’t be one of them. Whether it’s bamboo sheets, linen bedding, or a supportive Sleepybelly pillow, investing in the right setup means you’ll wake up cooler, calmer, and ready to take on tomorrow. Every mum deserves to drift off in comfort, no tossing, turning, or overheating required.
