I found this :
Yes, there are clinical studies on the use of black cumin extract and ashwagandha extract for sleep.
- Black cumin extract: A randomized, double-blinded, placebo-controlled study found that daily supplementation with a proprietary thymoquinone-rich black cumin oil extract may increase sleep satisfaction by reducing stress[2]. Another study showed that supplementation with a standardized oil from black cumin may significantly improve sleep quality in people with sleep disorders[3].
- Ashwagandha extract: A randomized, parallel-group, stratified design, placebo-controlled study found that Ashwagandha root extract can improve sleep quality and can help in managing insomnia[1]. A systematic review and meta-analysis also found that Ashwagandha extract can improve sleep quality[4].
In addition, a proprietary black cumin oil extract (BCO-5) was found to modulate the stress-sleep-immunity axis safely, improving sleep quality and reducing stress[6]. A black cumin seed extract improved sleep efficiency and perceived stress in clinical studies[5].
Sources
[1] Clinical evaluation of the pharmacological impact of ashwagandha root extract on sleep in healthy volunteers and insomnia patients - PubMed
Clinical evaluation of the pharmacological impact of ashwagandha root extract on sleep in healthy volunteers and insomnia patients: A double-blind, randomized, parallel-group, placebo-controlled study - PubMed
[2] Black cumin extract may help manage stress, boost sleep: RCT - nutraingredients-usa.com
Black cumin extract may help manage stress, boost sleep: RCT
[3] Black cumin oil may boost sleep quality, help with stress: Human data
Black cumin oil may boost sleep quality, help with stress: Human data
[4] Effect of Ashwagandha (Withania somnifera) extract on sleep: A systematic review and meta-analysis - PMC - NCBI
Effect of Ashwagandha (Withania somnifera) extract on sleep: A systematic review and meta-analysis
[5] Improve Sleep Efficiency and Duration - Life Extension
https://www.lifeextension.com/magazine/2023/12/improve-sleep-efficiency
[6] A proprietary black cumin oil extract (Nigella sativa) (BlaQmax®) modulates stress-sleep-immunity axis safely: Randomized double-blind placebo-controlled study
A proprietary black cumin oil extract (Nigella sativa) (BlaQmax®) modulates stress-sleep-immunity axis safely: Randomized double-blind placebo-controlled study
By Perplexity at
https://www.perplexity.ai/search/11401f5c-32b7-430b-9f99-abb5f5bce535