Collection: Magnesium Bisglycinate Powder

Magnesium Bisglycinate Supplement for Sleep

Our specially formulated magnesium bisglycinate powder is the cornerstone of a powerful collagen sleep aid designed specifically for athletes by athletes. This magnesium sleep supplement combines four science-backed ingredients that enhance your natural sleep cycles and help your muscles & nervous system recover faster after training sessions.

Enhanced Absorption and Deep, Restorative Sleep

Experience the full potential of better sleep with our highly bioavailable magnesium bisglycinate powder (250mg), just one of the four ingredients in the Thirdzy sleep supplement stack. Unlike other forms of magnesium, magnesium bisglycinate is designed for optimal absorption in the intestinal tract, maximizing REM and deep sleep phases. The glycine component acts as a carrier molecule, facilitating efficient transport across cell membranes while calming the nervous system. This increased bioavailability means you wake up fully recharged—with no grogginess—and ready to train hard. Thirdzy supports your body's natural sleep processes without disrupting your hormones or metabolism, like sleep aids that rely on melatonin to knock you out.

Recover Faster. Stress Less.

Our magnesium bisglycinate and GABA sleep supplements are a game-changer for post-workout recovery and better nights of sleep. GABA is a naturally occurring neurotransmitter that reduces stress and shifts your brain from wakefulness to sleep. Combined with L-Theanine (200mg), an amino acid extracted from green tea that promotes calm focus and enhances sleep quality, this powerful combination helps you fall asleep faster by combating stress and overstimulation. 

Supports Muscle and Joint Recovery

Thirdzy contains hydrolyzed collagen (10g) from Argentinian grass-fed beef, providing the necessary protein building blocks for muscle, joint, and connective tissue repair. This clean, comprehensive sleep stack significantly benefits your musculoskeletal system during the critical overnight recovery window. Elite athletes across disciplines have experienced the difference: "Since I started using this formula, my sleep and recovery have gone through the roof. I can push harder in the gym and wake up feeling like a beast," reports Jason Grubb, 5x CrossFit Games Masters Champion. From your very first week, you'll notice fewer nighttime wakeups and longer sleep durations. By the first month, you'll experience noticeably better muscle recovery and reduced soreness—without the hormone disruption, metabolism issues, or dependency risks associated with melatonin-based products.