More and more Dutch men over 40 are sleeping poorly — and the cause is surprisingly simple

Eight hours in bed. Still waking up tired.

Many men between 40 and 60 recognize this. You go to bed on time. You sleep 7, 8 hours. And yet you wake up feeling like you barely slept. Your energy drops by mid-morning. Around 2 PM, it feels like someone pulled the plug. Your desire for things you used to enjoy — sports, sex, social activities — slowly diminishes. Not shockingly, not suddenly. Just less.

Many men think it's just part of their age. Or that they're just stressed. Sometimes that's true. But more often, it's something else. And it starts at night.

Poor sleep costs you more than you think at night.

During deep sleep, your body does four things simultaneously: produce testosterone, repair tissue, process memory, and balance hormones. 70% of your testosterone is produced at night — not during the day, not in the gym, but during deep sleep.

If you sleep poorly or wake up often at night (even if you don't remember it in the morning), you interrupt that entire process. Less deep sleep means less testosterone, less energy, less focus, less strength, less drive. It's literally a chain reaction.

Men over 40 wake up more often without realizing it. And one of the biggest, least discussed causes: their body gets too warm at night.

Your body tries to cool down. Your underwear works against you.

To enter deep sleep, your core temperature needs to drop slightly. Your body regulates this itself, through your skin and through areas that quickly release heat: your head, hands, feet, and groin. Testicles specifically operate at a lower temperature than your core temperature — which is why they are external.

If your groin gets too warm at night, your body has to work harder to cool down. Boxers that retain heat — cotton, synthetic, or processed viscose — incubate right there. You don't notice it consciously, but your brain does. It wakes up halfway. Deep sleep breaks. Testosterone production falters.

This isn't pseudoscience. It's how your body works.

You've probably tried everything. And nothing really works.

Bamboo underwear. Modal blends. Premium cotton. Synthetic "performance" boxers. Most men have tried all of these — and don't notice a lasting difference.

There's a reason for that. What you buy as "bamboo" in the store is almost always chemically processed viscose. It feels soft in the store, pills after 6 weeks, and retains moisture just as well as cotton. Modal is slightly better, but most modal blends stretch out within three months and lose their shape. Premium cotton is still cotton — it breathes a little better, but gets damp as soon as you start to sweat. And synthetic performance fabrics don't breathe at all and stink after one day.

None of these options are designed for what your body truly needs at night: a fabric that actively wicks away heat, has antibacterial properties, draws moisture away instantly, and retains its shape. None of them.

TRUE NEEDS — with TRUECELL®. The fabric that actually works.

TRUE NEEDS is a Dutch brand that wanted to do one thing right: make a boxer that lets your body do its job. No fashion, no hype, no flashy marketing. Just the fabric that works.

The boxer is built around a proprietary fabric — TRUECELL®. A blend of European functional fibers, specifically developed for what your body needs 24/7:

• Antibacterial action — built into the fiber. Sweat doesn't stink, your skin stays calm.
• Moisture wicking — directly away from your skin. No clammy feeling, even at night.
• Temperature regulation — up to 3°C cooler than cotton. Warm in winter, cooling in summer.
• Shape retention — 4-way stretch. No pilling, no stretching, no sagging. Still like day one after months.

It's not a miracle cure. It's a fabric that doesn't get in the way. And that's exactly what your body needs at night (and during the day) to do what it's supposed to do.

What changes when you switch?

You won't feel the difference on the first day. But for most men, it sets in after a week or two.

• You wake up less often at night.
• You notice you're sharper in the morning.
• Energy drops less quickly in the afternoon.
• Workout sessions feel different — more focus, more drive.
• No more clammy feeling, even on warm days or in meetings.
• Your boxer still looks like day one after three months.

Many men who switch order a second or third pack within a month. Not because we push them, but because the difference is clear.