Manta Sleep Mask is Rick's recommendation for most people reading this comparison. Score: 8.7/10. 4-minute sleep onset improvement. Highest ROI under $50.
Magnesium Glycinate (8.1/10) is the right choice for a specific situation: sleep onset over 20 minutes, first supplement to try. If that describes you, the full review has the complete math.
Frequently Asked Questions
Which is better: Manta Sleep Mask or Magnesium Glycinate?
Manta Sleep Mask (8.7/10) wins for most people. 4-minute sleep onset improvement. Highest ROI under $50. Magnesium Glycinate is the right choice if: sleep onset over 20 minutes, first supplement to try.
What is Rick's score for Manta Sleep Mask?
Rick rates Manta Sleep Mask 8.7/10. Verdict: 4-minute sleep onset improvement. Highest ROI under $50.
What is Rick's score for Magnesium Glycinate?
Rick rates Magnesium Glycinate 8.1/10. Verdict: 7-minute sleep onset improvement in 60-day Oura-tracked trial.
Who should choose Manta Sleep Mask?
Anyone with ambient light in bedroom.
Who should choose Magnesium Glycinate?
Sleep onset over 20 minutes, first supplement to try.
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Head to head, by the numbers
Manta Sleep Mask
Magnesium Glycinate (Life Extension)
Rick's score
8.7/10
8.1/10
Price
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Top strength
Zero eye pressure via molded cup design
Well-tolerated form with low GI side effects
Biggest drawback
Cups can shift with significant sleep movement
Well-tolerated form with low GI side effects
The case for Manta Sleep Mask
Zero eye pressure via molded cup design
Complete blackout for most light conditions
Lightweight and travel-friendly
Washable and durable
The case for Magnesium Glycinate (Life Extension)
Well-tolerated form with low GI side effects
Measurable Oura improvement in Rick's 60-day trial
Very low cost per night
Dr. Chen reviewed and approved the protocol
Bottom line
Manta Sleep Mask takes this one on the numbers (8.7/10 vs 8.1/10). Rick's highest ROI sleep purchase under $50. Complete blackout with zero eye pressure.
That said, Magnesium Glycinate (Life Extension) isn't a loser — it's a different answer. Rick ran a 60-day controlled trial. Sleep onset improved 7 minutes on average. The data is in the review. Not medical advice.