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.
30 Night | Chocolate Caramel
Rest & Recover Collagen
The formula for real recovery.
800+ Verified Reviews 800+ Verified Reviews
Rest & Recover is built around four clinically dosed active ingredients, each chosen for a specific role in sleep quality and overnight physical repair. No melatonin. No dependency. No next-day grogginess.
What's in it and why:
- 300mg GABA — calms neural overactivation and eases the transition into deeper, more restorative sleep stages
- 250mg magnesium — the bisglycinate form for maximum absorption; replenishes the magnesium depleted by training and supports overnight muscle repair
- 200mg L-theanine — drives alpha-wave activity in the brain, producing a calm wind-down without sedating you
- 10g hydrolyzed collagen peptides — grass-fed Argentinian beef, yielding ~3g glycine; the amino acid profile your body uses for tissue repair, delivered during the overnight window when synthesis peaks
- Informed Sport certified • Made in the USA
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800+ Verified Reviews 800+ Verified Reviews

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
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After 1 Night
You went to bed and actually wound down. The mental noise quieted faster. You woke up feeling like sleep did something — not just passed.
- Calmer before sleep
- Deeper sleep
- Easier to wake up
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After 7 Nights
The pattern is forming. You're falling asleep faster, staying asleep longer, and waking up with more in the tank than you're used to.
- Falling asleep faster
- Staying asleep through the night
- Waking up ready
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After 30 Nights
This is what consistent recovery sleep feels like. Less soreness. A body that's actually keeping up with the work you're putting in.
- Stronger training sessions
- Less soreness and stiffness
- More energy in training
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.
OUR PROMISE
30 Nights, Risk Free.
Try Thirdzy for 30 nights. If you don't wake up feeling more rested and recovered, we'll refund you. No need to return anything. No questions asked. We're that confident in what's inside.
Informed Sport Certified
Tested for banned substances and safe for athletes.
Made in GMP facility
Manufactured under strict quality control standards in the USA.
Third-party tested
Every batch is independently tested for purity and accuracy.
Melatonin-free
Supports natural sleep without hormones or sedation.
Have Any Questions?
Frequently Asked Questions
View all FAQs
CAN I TAKE IT ALONGSIDE MY OTHER SUPPLEMENTS?
Yes. Rest & Recover is designed to fit into an existing supplement routine. It contains no stimulants, no hormones, and no ingredients that interfere with common training supplements — protein, creatine, pre-workout, or fish oil. The one thing to check: if you're already taking a separate magnesium supplement, you may want to account for the 250mg magnesium bisglycinate in each scoop to avoid exceeding your daily intake. If you're unsure, check with your healthcare provider.
IS IT SAFE TO TAKE EVERY NIGHT LONG-TERM?
Yes — that's how it's designed to be used. None of the four ingredients in Rest & Recover create dependency or tolerance. There's no melatonin to suppress your body's natural production, no sedatives, and no hormones. The collagen, magnesium, GABA, and L-theanine are all naturally occurring compounds your body already uses. Nightly use is not only safe — the effects are cumulative, meaning your sleep quality and recovery continue to improve the longer you use it consistently.
HOW DOES IT COMPARE TO AGZ?
AGZ (popularised by Dr. Andrew Huberman) is built around mental relaxation — magnesium L-threonate, ashwagandha, saffron, and valerian root target cognitive calm and stress reduction. It's a solid formula if your primary goal is unwinding mentally. Rest & Recover shares the L-theanine, but the rest of the formula is built around physical recovery: 10g collagen delivers the amino acids your muscles and joints need to repair overnight, GABA directly quiets neural overactivation from training, and magnesium bisglycinate supports muscle relaxation specifically. AGZ can help you relax. Thirdzy helps you recover while you sleep.
Very clumpy and hard to drink. Doesn't seem to be helping at all after 2 weeks of consistent use.
So sorry to hear it's been clumpy and not giving you the results you were hoping for. Clumping is usually a sign it may need more of a vigorous mix and room temp water. A frother or shaker bottle could definitely be useful. We're bummed it's not jiving with your system just yet. After a full 30-night trial, if it's still not working, shoot us an email at zteam@thirdzy.com so we can sort out a refund for you. Thanks for the honest feedback!
I feel so well rested each morning. Even waking before my very early alarm some days. It’s a delicious treat that I look forward to each night. Real sleep data from my watch has shown drastic improvements in my sleep quality
Love this! There’s no better feeling than waking up refreshed. It’s awesome that your watch data is confirming those drastic improvements. Real results don’t lie! Thanks for the love on the taste, too.
It’s helppng me get more deep sleep, then I’ve had in years. Consistent use has been a key. I wake up ready to hit the gum and have a productive day.
J’ai acheté un sac de 7 sachets pour essayer. J’ai observé un meilleur sommeil 3/7 nuits. Concernant la récupération des muscles, je n’ai pas fait d’observations significatives. Je vais sûrement réessayer un 30 jours consécutif pour voir à moyen/long terme les effets.
Thanks for sharing this with us! We do recommend giving the product a full 30-night trial before determining if it's working for you or not. Those consistent sleep wins and the deeper muscle recovery usually start stacking up once you hit that 30-day mark and your body fully acclimates. Circle back with us to let us know how it's going at the end of the 30 nights!
I have consistently taken it for 4 weeks now and am happy with the results. Recovery has improved immensely, but still waiting on sleep to get better. Taste is good and will continue taking it hopefully with continued results.
Thanks so much for this review! The physical recovery you’re experiencing is a huge indicator that the quality of your sleep is actually getting much better, even if it doesn’t feel like a major shift quite yet. Keep at it!