Notes on sleep, materials, and recovery.
Field notes from the HADAL studio. What actually happens to the body overnight, and what the layer nearest the skin has to do with it.
- 9 min read
Does What You Wear Affect Sleep Quality
The layer closest to your skin is quietly running your night. Fabric changes core temperature, moisture, and how often you wake.
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Why People Overheat at Night
Waking up hot is almost never a thermostat problem. It is a fabric and moisture problem sitting one millimetre from your skin.
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How to Sleep Cooler Naturally
You do not need a chiller or a smart mattress to sleep cool. You need the right layer at skin level and a few small habit changes.
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Bamboo vs Cotton vs Merino Sleepwear, Which Is Better
Most bamboo sleepwear is not really bamboo. Most cotton sleepwear is heavier than it needs to be. Merino is the one that regulates in both directions.
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How Body Temperature Affects Deep Sleep
Deep sleep is not a switch. It is a slow drop in core temperature that only happens when the body can lose heat efficiently.
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The Science Behind Temperature Regulation During Sleep
Sleep is a controlled cool down followed by a controlled warm up. The system is elegant, and easy to disrupt.
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What Is Ultrafine Merino Wool and Why It Matters for Sleep
Merino is not one material. It is a scale, and only the finest end of it belongs against the skin for eight hours.
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Far Infrared Fabric and Overnight Recovery
Far infrared fabrics are a small technical layer with measured effects. They are not magic. They are a real tool if you understand what they do.
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Is Merino Wool Too Hot for Summer Sleep
Wool is associated with cold weather because of how it is usually knitted, not because of what the fibre does.
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Silicone and PFAS in Sleepwear, What to Check Before You Buy
A fabric that feels remarkable in the shop and disappointing after four washes was usually finished, not engineered.
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