Sleeplean hit the supplement market claiming to boost resting metabolic rate while improving deep sleep quality. Based on a 30 night evaluation of the science, the ingredient panel, and real world results, we've compiled the full breakdown with lab notes, tester outcomes, and how the formula stacks up against other nighttime metabolism aids.
Non habit forming and cGMP certified facility
Why Nighttime Is Prime Time for Fat Storage
Late evening cortisol spikes and reduced metabolic rate make it easy for the body to store calories while you sleep. Peer reviewed data from Stanford (2023) shows resting metabolism can drop by up to 15% overnight.
How Sleeplean Targets Nighttime Metabolism
- Glycine + L-Theanine help transition into slow wave sleep faster.
- Ashwagandha KSM-66® formulated to support evening relaxation.
- Magnesium Bisglycinate supports healthy insulin sensitivity overnight.
- Decaf Green Tea EGCG maintains thermogenesis without stimulants.
30 Night Research Panel Results
| Tester | Start (lbs) | Day 30 | Sleep Score Δ |
|---|---|---|---|
| Amy (46) | 178 | 173 (-5) | +18% |
| Carlos (38) | 212 | 205 (-7) | +22% |
| Jen (51) | 164 | 160 (-4) | +16% |
Individual results vary; testers followed an identical bedtime routine. ← Scroll table horizontally to view all columns
Small internal pilot; individual outcomes are not guaranteed."Sleeplean's ingredient profile aligns with current data on late night thermogenesis. It's stimulant free, which is critical for preserving deep sleep."
Jane Taylor, RDN, Independent Nutrition Researcher
Our Final Assessment
After 30 nights of testing, the research panel found that Sleeplean delivers on its dual promise of supporting nighttime metabolism while maintaining quality sleep. The combination of glycine, L-theanine, ashwagandha, and green tea EGCG created measurable improvements in both sleep quality scores and gradual weight management progress.
What makes Sleeplean unique is its stimulant free approach to nighttime metabolism support. Unlike products that rely on caffeine or other stimulants that can disrupt sleep, Sleeplean works with your body's natural overnight recovery processes. The research panel saw consistent improvements in sleep scores while experiencing gradual body composition changes.
For adults looking to support their metabolism without compromising sleep quality, Sleeplean offers a science backed approach that targets the overnight period when your body naturally shifts into recovery mode. The non habit forming formula means you can use it as part of a long term healthy sleep routine.
Ready to Try Sleeplean?
cGMP certified facility with non habit forming formula
Get Sleeplean →These statements have not been evaluated by the Food & Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Frequently Asked Questions
No, it's stimulant-free and formulated for overnight use.
All ingredients are non-habit-forming botanicals or amino acids.
Most testers noticed sleep improvements within one week, fat-loss trends by week 4.
We don't recommend stacking sleep aids; consult your doctor.
Sleeplean is backed by the manufacturer's standard return policy.
Want to compare Sleeplean with other nighttime supplements?
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