Research · 2025-08-21
Bedtime Kratom Use Modestly Improves Sleep Duration and Quality, Real-World Study Finds
Source: Experimental and Clinical Psychopharmacology / PubMed (PMID 40839514)
Why it matters
As kratom use for sleep support grows, this first real-world evidence of its sleep effects carries direct clinical relevance — helping physicians counsel patients who are self-treating insomnia or sleep disruptions with kratom, especially those with chronic pain.
The big picture
Sleep improvement is a frequently reported reason for kratom use, yet no prior empirical studies had examined this in naturalistic daily settings. Using ecological momentary assessment data from 357 U.S. adults over 15 days, NIH-funded researchers found modest but measurable sleep benefits associated with bedtime kratom use — findings that underscore both kratom's complexity and the need for controlled trials.
Key findings
- Bedtime kratom use occurred on 23.4% of days tracked across 357 participants
- Associated with approximately 13 additional minutes of sleep duration on average
- Sleep quality improved by 5.93 points on a 0-100 scale on days with bedtime kratom use
- Female participants reported greater sleep quality improvements than males
- Chronically ill participants (pain) showed greater improvements in both sleep duration and quality
What they say
The authors noted that "Bedtime kratom use is associated with modest sleep duration and quality improvements, particularly in adults with chronic pain, and better sleep quality in female respondents," adding that "human laboratory studies in kratom-naïve participants" are needed to determine causality and underlying mechanisms.
Bottom line
Kratom produces modest but real-world measurable improvements in sleep — particularly for chronic pain patients and women — though these self-reported benefits require confirmation through controlled clinical studies.