Best Sleep & Relaxation Supplements

Top-rated sleep & relaxation supplements ranked by quality score. Last updated: Mar 2026.

Vital Nutrients L-Theanine - May Help Moderate Occasional Stress & Promotes Relaxation, 200 mg, 120 Vegan Capsules
Vital Nutrients L-Theanine - May Help Moderate Occasional Stress & Promotes Relaxation, 200 mg, 120 Vegan Capsules
Product 100 Brand 81
Source Naturals L-Theanine Caps, 200 mg, 30 Capsules
Source Naturals L-Theanine Caps, 200 mg, 30 Capsules
Product 100 Brand 66
XYMOGEN L-Theanine, 120 Vegetarian Capsules
XYMOGEN L-Theanine, 120 Vegetarian Capsules
Product 100 Brand 96
XYMOGEN L-Theanine, 60 Vegetarian Capsules
XYMOGEN L-Theanine, 60 Vegetarian Capsules
Product 100 Brand 96
Spoken Nutrition Sleep Builder - NSF Certified for Sport, 14 Sachets
Spoken Nutrition Sleep Builder - NSF Certified for Sport, 14 Sachets
Product 100 Brand 75
Revive MD Suntheanine L-Theanine - Supports Relaxation & Alertness Enhances Focus, 60 Capsules
Revive MD Suntheanine L-Theanine - Supports Relaxation & Alertness Enhances Focus, 60 Capsules
Product 100 Brand 82
Vitacost-Synergy L-Theanine from Suntheanine, 100 mg, 120 Capsules
Vitacost-Synergy L-Theanine from Suntheanine, 100 mg, 120 Capsules
Product 100 Brand 62
Simple Truth L-Theanine, 200 mg, 60 Capsules
Simple Truth L-Theanine, 200 mg, 60 Capsules
Product 100 Brand 65
Premier Research Labs L-Theanine, 60 Capsules
Premier Research Labs L-Theanine, 60 Capsules
Product 100 Brand 62
Olympian Labs L-Theanine, 400 mg, 60 Capsules
Olympian Labs L-Theanine, 400 mg, 60 Capsules
Product 100 Brand 66

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.