Sleeping Like It's Sea Level: A Denali Story

August 04, 2026 | By Stan Pillman Climber's-eye view of Denali's summit ridge, the mountain Brandon Bargo pre-acclimatized for using Hypoxico altitude tents

Some people give themselves a decade to summit the highest point in all 50 states. Brandon Bargo gave himself under 20 days.

If you don't climb, it's hard to explain how absurd that is. Denali alone, just the first mountain on his list, is one of the hardest peaks anyone can climb, and most people train for years to attempt it once. Brandon wanted to knock it out and immediately fly to the next one. And the next. And the next. Fifty of them, back to back, faster than anyone has ever done it.

I got to sit down with Brandon, and honestly, I could've talked to him all day. This is the story of his journey and the quiet piece of gear that ran through the whole thing.

Who these guys are

Brandon co-hosts The Highpointers with his brother — a docuseries on PBS and Amazon Prime that follows the two of them chasing the highest point in every U.S. state. Two seasons in, the show's built its whole identity around the idea that highpointing isn't just for elite mountaineers chasing records — it's something regular people with a weekend and some grit can actually go do.

Off camera, Brandon runs the outdoor program at Southwestern University in Texas, where he's led students on everything from Kilimanjaro to backpacking trips in Hawaii to Guadalupe Peak right here at home. He's even folded in the university's kinesiology, business, and environmental studies departments, turning this challenge into a real teaching tool instead of just a personal quest.

He's not new to altitude, and he's not new to sharing it either. That's exactly why what he had to say about Denali landed so hard. Let me know if you want me to keep going through the rest of the post the same way.

The problem nobody talks about

Here's the thing about a challenge like Brandon's: the enemy isn't just the climbing. It's time.

To climb a mountain like Denali the normal way, you spend weeks on it, hauling loads up, sleeping low, climbing high, letting your body slowly adapt to the thin air before you ever go for the summit. That process is brutal, it's slow, and for most of us with jobs and families, it's the single biggest reason a big peak stays a someday-dream instead of a plan.

Brandon didn't have weeks to burn on acclimatization. He had a clock running and 49 more mountains waiting. So before the trip, both he and Chris pre-acclimatized at home, sleeping in Hypoxico tents at simulated altitude for weeks, so their bodies would show up to Denali already adapted.

"I felt like I was breathing at sea level at 17,000 feet. It was absurd."

"And that's not normal"

Brandon's story is even better, because he's climbed Denali twice, once the old-fashioned way, and once after pre-acclimatizing with Hypoxico. The first time took him 20 days. This time, he summited in about 10.

But it wasn't just the speed that got him. It was how he felt up high.

"I've camped at Denali at 14,000 and couldn't breathe," he said. "I've camped at 17,000 and couldn't breathe very well. This time I was just sleeping, like, normal. And that's not normal."

That line is the whole thing, honestly. Not "I climbed faster"; it's I slept like a human being at 17,000 feet. When you're properly acclimatized, your body isn't spending the night fighting to survive. It's actually resting. Recovering. Getting you ready for the next day instead of digging you a deeper hole. On a mountain, quality sleep is half the battle, and most people never get it.

For Brandon, that adaptation didn't just carry him up Denali, it carried through the entire 50-state run. Because he was moving so fast and staying at elevation so much of the time, he never really dropped back down long enough to lose it. As he put it, he could roll into any state, at any elevation, and move about as fast as he wanted. Altitude went from being the thing that could end his trip to something he barely had to think about.

It's a tool, not a cheat code

Both guys used the word "cheating," and both of them took it right back.

"It's not cheating if you live in Denver," Brandon pointed out. Nobody accuses the climber who lives at 7,000 feet of gaming the system. Pre-acclimatizing at home is the same idea; it just doesn't require you to pack up and move to the mountains. "It doesn't take away," he said. "It just adds. You still have to train. You still have to do the work. But this is going to help — tremendously."

And then he asked the question that stuck with me most: Why haven't I heard about this?

His theory: the elite athletes who use it, the record-chasing runners, the cyclists, the mountaineers, tend to keep quiet about it. If it's your edge, why hand it to your competition? Fair. But the side effect is that a whole world of regular climbers assumes altitude training is some rarefied thing for Olympians and the world-class Sherpas, and not for them.

It isn't. As Brandon said it plainly: this is for the everyday person as much as the athlete.

Think about who that actually is. The person working a 9-to-5 who can scrape together two, maybe three weeks of vacation, and has always dreamed of a big peak. You don't have to vanish onto a mountain for a month to arrive ready. You do the adapting at home, on your own schedule, and you spend your precious time off actually climbing.

The reserve you didn't know you needed

There's one more thing worth mentioning, and it surprised even me.

Brandon teaches his students something he calls the rule of thirds: one-third of your energy to climb the mountain, one-third to get back down, and one-third held in reserve, in case you have to help somebody else. Most people up high don't have that last third. They're running on fumes just keeping themselves alive.

On Denali, Brandon and his climbing partner got to find out what that reserve is worth. When another climber went down near 17,000 feet, and his own exhausted team couldn't help, the two of them still had enough in the tank to step in, running comms, working with the ranger station lower on the mountain, and helping keep an eye on the man until he could be flown out safely. Being properly acclimatized didn't just help them move; it left them with something to give when it counted.

That's not a performance stat. That's the kind of thing that actually matters on a mountain.

The honest part

I'm not going to wrap this up in a bow, because that's not us.

Brandon didn't break the record. Summit day on Denali, he bonked hard, but it wasn't the altitude. He'd gotten over pneumonia only a week before (he stopped using the tent for a week to recover, then jumped right back in) and was badly under-hydrated. He was clear-headed enough to check himself for the dangerous stuff, ground his way to the top anyway, then slept four hours and hiked two straight days to beat a storm off the mountain.

After Denali he flew to Hawaii, then the Pacific Northwest, the desert, the Appalachians — high point after high point. In the end it was weather, not fitness and not altitude, that stopped him: snow, hurricane-force winds, thunderstorms, even a wildfire that closed a mountain in Colorado. He summited 46 of the 50. The last four fell to conditions nobody can train for.

Did he get the record? No. Did everybody come home healthy? Yes. And if you've spent any time in this sport, you know which of those two actually counts.

Why we love this stuff

I've said for years that I'm the beer-league guy in this world — men's-league hockey in my 40s against dudes 20 years younger, hanging with them because I train hard at altitude at home and my body barely notices sea level anymore. I'm not summiting Denali. I don't need to. That's kind of the whole point.

This brand has never chased the loud, flashy moment. We care more about the community than the spotlight — the climbers, the ultrarunners, the everyday people doing hard, beautiful things for reasons that have nothing to do with checking a box. (Brandon's own brother, as it turns out, used our gear to run the Hardrock 100. Small world.)

So when the experienced climbers come off Denali and tell me the biggest thing they took away is that they slept like it was sea level, moved when they wanted to, and had something left over for the people around them — that's the story I want to tell. Not because it sells anything. Because it's true, and it's exactly the kind of thing we got into this for.

Congrats, Brandon and his team! Glad you climbed hard and came home safe.

Follow Brandon's High Pointers journey

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