By Valérie Orsoni — Biohacker & Longevity Expert
Valérie Orsoni is a biohacker, author of 56 books, and founder of biohacker.fr. She has been tracking her biology through N=1 self-experimentation protocols since 1998. She is recently completed her Stanford Genetics Longevity Research certification program and is currently enrolled in the Stanford Medicine nutrition science program. She was named in the Top 50 Longevity Leaders by Life Spanning magazine and is currently the #1 on the Longevity Cup Leaderboard (chronological age -23 years).
This is NOT a sponsored post. I have tested this modality for months and I truly love its impact on my sleep.
Some people have a smartwatch, others a smart ring, and others still have gadgets that make life easier or workouts more enjoyable (my AI bike, for example). But for me, sleep remains the foundation of any longevity protocol. It’s a bit of an obsession of mine.
Here’s the thing though: when it’s cold, unless you have a nice heavy comforter and warm socks (which you end up kicking off in the middle of the night because you get too hot), sleep gets disrupted.
And when it’s hot, or you’re having hot flashes, or dreams and nightmares that leave you rattled, your nights turn into an outright disaster.
The truth is, to fall asleep, the body needs to cool down slightly: it’s this slight drop in body temperature that triggers the production of melatonin, the sleep hormone. In other words, a body that’s too warm sends the wrong signal to the brain and delays falling asleep.
I’ve tried many techniques to cool down a bed that’s too warm, and my body along with it: a lukewarm shower (never ice cold, the effect is the opposite), an ice-filled hot water bottle, pillowcases straight from the freezer, a fan... But after two hours, none of it works anymore.
So I thought to myself: why hasn’t anyone invented a mattress that cools itself down? Not an air-conditioned mattress that makes you cold, just a mattress capable of dropping a few degrees at the right moment.
I searched everywhere, and I finally found the perfect solution. Well, not a mattress exactly, but a mattress topper: cutting-edge technology, used by top athletes (including my darling, F1 driver Leclerc), and it emits very low electromagnetic waves (yes, that’s another one of my obsessions).
The name of this miracle: Eight Sleep.
I have been testing it for months now. You know me….I do not share a new modality unless I have thoroughly tested it.
As for setup: super easy. You receive two boxes (see the photo in this article). Everything is very well organized, and the app guides you step by step. Plan on about 30 minutes to get everything properly set up.
At first, I was skeptical: more electronics, do I really need this? But then, as the days went by, my nights got longer and most importantly I got more deep sleep.
Every morning, my Eight Sleep (yes, that’s the product’s brand name) tells me it made 25, 28, or 32 (the number obviously varies) temperature adjustments overnight to keep me asleep, neither too hot nor too cold. The mattress can raise or lower its temperature by 5°C (about 9°F) in just a few seconds.
It also tracks sleep quality and snoring. I can proudly report that except for one night when I snored for 45 minutes following a biohacking protocol to eliminate an aspergillus colony in my sinuses (an article on that is coming soon), I never snore more than 1 to 6 minutes a night.
In short, I now understand my friends who tell me they can’t live without theirs anymore, to the point of installing one in their primary residence and another in their family vacation home.
You can try Eight Sleep risk-free for 30 days, which in my humble opinion is more than enough time to see how it impacts your sleep: both duration and quality. With the heat firmly settled in, now is really the moment to try it! Or wait until fall, to start the season off with optimal sleep.
Oh, and I negotiated a code for you good for up to $350 off: VALERIEORSONI
The fully immersive thermal comfort adapts in real time to keep you in deep sleep longer, you and your partner both. Yes, the mattress knows who’s sleeping where, so both sides can have two different temperatures.
If you suffer from hot flashes, you can ease them because the Pod keeps your side of the bed cool all night to prevent overheating. If a hot flash wakes you up, a simple button (on the side of the mattress) activates rapid cooling, and the temperature then gradually returns to your ideal sleep setting.
The smart Base automatically adjusts the incline (up to 5 degrees) to relieve back pressure and reduce snoring, all while you sleep. Measured impact, impressive results!
The immersive sound built into the Base helps you relax, block out background noise, and keep your sleep environment stable all night long.
I also use it to recover after workouts. Why? Your muscles recover while you sleep. The Pod lowers your body temperature to reduce tension and tracks indicators like your heart rate and sleep depth. So you’re doing more than just resting: you’re actually recovering.
I’m rarely this excited about a new gadget! In fact, you don’t see many articles like this one from me.
But this time, I’m won over, and I’m panicking because after writing this article I was leaving for a month in Tahiti, and of course, I could not bring my Pod with me! Should I have canceled my trip? #JustKidding
Want to try it: the manufacturer offers a risk-free 30-day trial, which I find very convenient and, above all, honest. I’ve noticed that high-quality brands readily offer this kind of trial because they know their product is top-notch.
To order your Pod5 (and the Base if you want to stop snoring), head over to Eight Sleep (the site is available in several languages, and they ship almost everywhere in the world) and be sure to use the code VALERIEORSONI for up to $350 off.
Valerie Orsoni
Biohacker since 1998 | Longevity Expert
University of Hartford Hall of Fame
Top 50 Longevity Leaders (by Lifespanning Magazine)
Explorer: Skied to the South Pole, Climbed 45 peaks over 16k ft
Instagram : Valerie Orsoni
My fave brands + super promo codes here ==> ValerieOrsoni.com
My made-in-the-usa, clean, no fillers supplement line ==> ZellNova
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