Sleep Stack
The perfect wind-down combo. Just Greens replenishes your body with essential nutrients while Ashwagandha reduces cortisol levels, calms the nervous system, and promotes deep, restorative sleep.
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- Reduces cortisol and stress levels
- Supports deep, restorative sleep
- Calms the nervous system naturally
- Replenishes essential vitamins and minerals
Key Benefits
Why thousands choose Sleep Stack every day.
Better Sleep
Ashwagandha calms the nervous system so you can switch off and rest deeply.
Cortisol Reduction
Clinically shown to reduce stress hormone levels by up to 30%.
Nutritional Recovery
Just Greens delivers vitamins and minerals your body needs to repair overnight.
Morning Energy
Better sleep means waking up with genuine, sustained energy.
Active Ingredients
Clinically-backed ingredients based on decades of science, validated across ages, genders, and genetic backgrounds.*
Withanolides (from Ashwagandha)
Why we chose it:
The primary bioactive compounds in ashwagandha root, clinically shown to reduce cortisol levels, improve stress resilience, and support deep, restorative sleep cycles.
Chlorella & Spirulina (from Just Greens)
Why we chose it:
Rich in magnesium and B-vitamins that support the nervous system and muscle relaxation — key precursors for quality sleep.
Moringa & Baobab (from Just Greens)
Why we chose it:
Anti-inflammatory compounds that reduce oxidative stress accumulated during the day, supporting overnight cellular recovery and repair.
*These statements have not been evaluated by the MHRA. This product is not intended to diagnose, treat, cure, or prevent any disease.
How to Use
Simple. Effective. Every day.
Morning Greens
Mix 1 scoop of Just Greens with water or juice in the morning.
Evening Ashwagandha
Stir 1 teaspoon of Ashwagandha into warm milk or tea before bed.
Wind Down
Take Ashwagandha 30–60 minutes before sleep for best results.
Consistency
Full benefits develop over 2–4 weeks of daily use.
Feel Better in 30 Days
Real results don't happen overnight — but they happen faster than you think.
First Steps
Your body starts absorbing nutrient-dense ingredients. Many people notice improved digestion and reduced bloating within the first few days.
Energy Shift
Consistent nutrition means fewer energy crashes. You'll start waking up sharper and powering through the afternoon without reaching for caffeine.
Visible Change
Skin looks clearer, gut feels calmer, and your body is running more efficiently. This is where people start noticing a real difference.
The New Normal
Better energy, stronger immunity, improved focus — it's not a spike, it's your new baseline. This is what consistent nutrition feels like.
Us vs Them
How we measure up against the average supplement brand.
Our Standards
Most supplement brands hide behind proprietary blends and vague claims. We believe you deserve to know exactly what's in your powder, where it comes from, and how much of each ingredient you're getting.
Certified Organic
Every ingredient is certified organic by the Soil Association.
Lab Tested
Independent third-party testing for purity and potency.
Properly Dosed
Clinical doses, not micro-doses. What the research says works.
Frequently Asked Questions
Customer Reviews
Game changer for my mornings
I've been using Sleep Stack for about a month now and the difference is night and day. More energy, better focus, and I actually look forward to taking it. Genuinely impressed.
Sarah M.
London, UK · Verified Buyer
Finally, something that works
Tried so many supplements that promise the world and deliver nothing. Sleep Stack is the real deal — I noticed a difference within the first week. Will be subscribing.
James T.
Manchester, UK · Verified Buyer
Really good quality
You can tell this is proper quality stuff. Tastes better than expected and I've noticed I'm not crashing in the afternoons anymore. Only 4 stars because delivery took a bit longer than expected.
Emily R.
Bristol, UK · Verified Buyer
Exactly what I needed
Been looking for something clean and organic without all the fillers. Sleep Stack ticks every box. My partner's started using it too now!
David K.
Edinburgh, UK · Verified Buyer
Subscribe & save is brilliant
Love that I don't have to remember to reorder. The subscribe option saves me money and it just turns up every month. Product quality is consistently excellent.
Rachel P.
Birmingham, UK · Verified Buyer
Worth every penny
Was sceptical at first given the price, but you genuinely get what you pay for. The transparency on dosages sold me and the results have kept me. Highly recommend.
Tom H.
Leeds, UK · Verified Buyer
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