You're putting in the work. Thirdzy makes sure your sleep is putting in the work too: deeper recovery cycles, less soreness, more ready every morning.
Rest & Repair
More than a Sleep Aid
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Wake up Stronger, Less Sore.
10g collagen delivers the amino acids your muscles and connective tissue need during the repair window — so training adaptations actually stick.
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Fall Asleep Naturally.
Magnesium bisglycinate and L-theanine bring your nervous system down from your day. So you can fall asleep on your schedule.
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Clear Head. No Hangover.
Unlike melatonin, nothing in Thirdzy interferes with your hormones or leaves you foggy. Take it every night. No tolerance, no dependency.
What to Expect Over 30 Nights
Ingredients Backed by Science
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Magnesium
Bisglycinate250mg per serving
Learn how magnesium supports sleepChelated for superior absorption. Replenishes the magnesium depleted by training and supports muscle recovery overnight.
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Collagen
Protein10g per serving
Learn why collagen supports recovery10g of hydrolyzed peptides, the amino acids that drive overnight tissue and joint repair.
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GABA
300mg per serving
Learn how GABA promotes sleepInhibitory neurotransmitter that quiets neural overactivation after a hard training day, supporting entry into deeper sleep stages.
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L-Theanine
200mg per serving
Learn how theanine supports deep sleepDrives alpha-wave activity in the brain — a calm state that lets you wind down without being knocked out.
This is Who Needs Rest & Recover
You train hard but wake up under-recovered
You're sore more days than not
That's your body telling you the overnight repair isn't keeping up. Thirdzy delivers the collagen and amino acids your muscles and joints need to rebuild while you sleep.
You can't always get 8 hours
You're not going to fix that. Thirdzy makes the hours you do get more restorative — so a 6-hour night recovers you like an 8-hour one used to.
You sleep but never feel fully rested
Hours in bed isn't the problem. Sleep quality is. Thirdzy supports deeper, more restorative sleep cycles so you actually wake up feeling like you slept.
You're done with melatonin
The grogginess. The dependency. The way it stops working. Thirdzy supports deep sleep without overriding your body's natural sleep signals.
Some of the reviews shown are from related products the merchant grouped with this one.
F
Working pretty good after 30 nights
Thank you for this feedback! :)
K
Sleep in perimenopause and menopause, or lack of it, is a hot topic among my friends. Struggling to get to sleep is a big one. After trying Thirdzy and falling asleep literally within an hour of taking it, I’m hooked!
We love to hear this!! Sleep can be tough during perimenopause and menopause, so we’re glad Thirdzy is helping you fall asleep more easily. Thanks for sharing and welcome to the Thirdzy fam!
M
I’m in the military so going to sleep is never really a problem. It’s staying asleep after that four hours of rem sleep that always gets me. Thirdzy helps me shut my brain off when I toss and turn in the middle of the night. I’m now getting 7 good hours of sleep. I have been able to get more sleep and recover so I can crush workouts the next day. It is a great product and I approve.
Thank you for sharing this and for your service. We’re glad Thirdzy helps you quiet your mind when you wake up and get the rest you need to recover and tackle your workouts. We really appreciate your support and your approval!
L
Training in midlife sometimes feels like a crapshoot. There many variables can’t be managed in order to get a good training day in every time. I appreciate that Thirdzy is helping me have a good base of recovery.
So pumped to hear that Thirdzy is helping you build that solid recovery base! Having that foundation locked in makes a huge difference when the other variables are all over the place. Keep at it!
J
My sleep and recovery have definitely improved. Taste is decent too.
Yay! Thanks for sharing this feedback with us!
E
I am making a switch from melatonin. I often have late nights playing roller derby but still want to get up at 5:30 for crossfit. I needed something that helped to ramp me down at night but didn't keep me in a fog in the morning. I've only been using thirsty for a month so I'm still figuring out timing to make the best of it but so far, so good.
We love hearing that Thirdzy is helping you 'ramp down' without giving you that morning fog. That's precisely what it's designed for!
Keep experimenting with that timing to find your sweet spot and reach out to zteam@thirdzy.com if you need any help fine-tuning your nighttime Thirdzy routine.
A
As a new mom, sleep has been broken and short but with Thirdzy the sleep I get feels deeper and I wake up feeling more refreshed!
Being a new mom is a marathon, and we’re honored that Thirdzy is helping you make the most of those precious hours of sleep. Waking up feeling more refreshed is a huge win and you definitely deserve it!
M
What can I say? As a Masters Athlete doing CrossFit, recovery is the main focus for me everyday. But as a Father, Husband, Coach, Small Business owner, and many other hats I have to wear every day I can't always get the amount of sleep I need consistently. Taking Thirdzy daily helps me get the right amount of QUALITY sleep I need. Highly recommend giving it a 30-day shot and seeing how it does for you.
Love this - thank you so much, Matt! So pumped we're able to help you put your best foot forward every single day!
T
I wanted to give it a month before providing feedback so as a 44 and 48 year old active couple who are at the gym 4x per week and doing endurance sports, running and cycling recovery and sleep are very important to us, I was also a melatonin fan as well. Happy to report a deeper night sleep while feeling less groggy in the morning, also faster muscle recovery after workouts. So far Thirdzy has been a welcome addition to our routines, also tastes great so we look forward to it before bed 🙂
This is the best!! Thank you for giving our product a full 30-day try and reporting back on your experience. So grateful to have you both as part of the Thirdzy fam!
D
I have been using Thirdzy for about 2 weeks now. I am a 68 yr old Masters Olympic weightlifter. I work out hard 3-4 days a week. My Garmin says that I should have 150 intensity minutes per week. I actually end up with around 1750 intensity minutes per week; so, my HRV balance has been low, and my body battery never seems to fully recharge and recover.
I am seeing an improvement on both. I will continue to monitor for the full 30 days to see if things continue to improve.
My sleep score seems to be improving also; I was taking 10 mg of melatonin before taking Thirdzy. I have stopped taking the melatonin now. I have noticed a little less brain fog in the mornings
Love this update so much! HRV improvement and sleep scores on the uptick is so awesome! We also love that you're experiencing less morning fog since dropping melatonin and using our product nightly. Big wins all around!
H
I had been having trouble sleeping and recovering from workouts. Had been taking my own stack of supplements to help, but Thirzzdy really seemed to improve my deep sleep and recovery. This allowed some consistent improvement in lifts, so it is part of my nightly routine now.
This is so awesome! We love that you've seen tangible improvements not only in your sleep metrics but also in your hard work in the gym. We're grateful to be part of your nightly routine :)
B
Thirdzy helps me fall asleep and my sleep feels deeper and more restorative. My mind and body need this after working and training six days a week.
Six days a week of work + training is no joke—glad Thirdzy is giving you that deeper, more restorative gear your body’s been asking for. Thank you so much for sharing your experience with us!
C
Totally wired and restless all night. Awful sleep
Hi Cory!
Thank you for this feedback. We’re sorry to hear you haven’t seen the results you were hoping for yet.
It’s important to know that some customers notice improvements quickly, while for others it can take longer for the product to have its full effect. Everyone’s physiology, body weight, and metabolism process ingredients differently, and our suggested serving size is designed for the average user.
You can try gradually increasing your dose — for example, moving up to a scoop and a quarter, or even a scoop and a half — and see if that brings you better results. Many customers have found this adjustment makes a difference.
If after 30 consecutive nights you’re still not experiencing improvements, please reach out to us at zteam@thirdzy.com and we’ll be happy to process a refund for you.
Thank you again for giving us a try, and please don’t hesitate to contact us if you’d like more guidance.
D
I was surprised that I am sleeping better and recovering better after my workouts. Main side effect for me so far, weird dreams. Definitely worth trying if you are having sleep issues.
And yep—you’re not the only one to mention vivid or weird dreams when sleep starts getting deeper. It’s actually a sign that your REM cycles are improving! That said, if the dreams ever feel too intense, adjusting your dosage slightly (like using half a scoop) can help dial things in while still supporting great sleep.
Thanks for giving Thirdzy a try—here’s to even more restful nights ahead (with or without the dream circus 😴✨).
Sleep tight,
Z-Team 😴
D
Love that it has no melatonin in it! Definitely helps me get to sleep and recover better from hours of daily training! Been using for months now and love it! Makes me feel as excited as my picture!
Now that’s the kind of sleep excitement we live for! 😄
We’re so glad you’re loving Thirdzy—and yes, no melatonin needed to get that deep, restorative sleep and bounce-back recovery after those long training days. Hearing you’ve been using it for months and still loving it? That means the world to us.
Thanks for bringing the energy—and the great sleep vibes!
Sleep tight,
Z-Team 😴
L
I deal with insomnia and Thirdzy has helped improve my sleep. They also give great tips for how to improve your sleep quality.
Better sleep is what we’re all about! We’re so glad to hear that Thirdzy has been a game-changer for you and helped improve your sleep. Insomnia is no joke, and we have so many members of the Thirdzy family who have the same problem, finding solutions or products that can help you is a game changer!
And yes—better sleep isn’t just about what you take, but also the habits you build around it. Keep crushing those Zzz’s!
Sleep tight,
Z-Team 😴
J
This stuff definitely helps you sleep better, my joints are starting to feel better after 20 days and it even tastes good!
Better sleep, happier joints, and a delicious bonus? That’s what we’re all about! ✨ We’re thrilled to hear how Thirdzy is helping you rest better and feel the difference in your joints after just 20 days.
Sleep tight,
Z-Team 😴
P
I work out daily, bought this stuff originally as it was recommended to me from my coach, I was skeptical, but tried it, now I swear by it and as an added bonus, it gives me wild dreams all the time, no lie!!
Wild dreams and restful nights? Now that's a win-win! 💪 We're thrilled to hear Thirdzy has become a must-have in your routine, especially with your daily workouts. Shoutout to your coach for the recommendation—we love hearing how it’s making a difference!
Sleep tight,
Z-Team 😴
L
I love your product
I was taking 10 mg Up melatonin and I was always foggy and tired..now I
'm rested and sleep very well
No more foggy mornings for Lisa! Restful sleep and feeling great—you’ve now discovered the benefits of skipping melatonin. Welcome to the club!
We’re so glad Thirdzy is helping you feel rested and refreshed. Cheers to more nights of quality Zzz's!
Sleep tight,
The Z-Team 😴
L
Thirdly has become a very important part of my daily routine. My sleep and recovery has a significant impact ion my current health and wellness issues and after starting thirdzy, I have noticed a significant improvement. I highly recommend this product.
Yasss! We love to hear that Thirdzy is making waves in your wellness routine! Your sleep and recovery are so important, and it sounds like you're already on the path to better health.
Sleep tight,
The Z-Team