Sleep Complex — Magnesium, Theanine & Saffron
Premium sleep formula: magnesium glycinate + Suntheanine® + Affron® saffron. Non-habit forming, non-melatonin.
What does optimal health cost per day?
Less than a coffee top-up. Optimal nutrition for 50p/day — the most cost-effective investment in your health.
Free Vitamin C 1000mg with orders over £40
While stocks last · auto-added at checkout
Supply size
Most customers reorder this monthly. Each pack lasts ~30 days.
Subscribe and save 15% — never run out. Switch to subscription
Your daily health investment
£0.83
per day
£5.81
per week
£24.99
per month
Less than a daily coffee — for daily nutritional support from Sleep Complex.
Auto-delivered. No minimum term. Cancel any time.
Price locked forever — we never raise your subscription price. Cancel any time, no fees.
Bundle and save up to 20%
Add 2+ products to your stack — discount applied automatically at checkout.
Not ready to commit? Try a 7-day sample pack
Only £2.99 — credited toward your first full order
Group buy — save up to 30%
Limited spotsPool orders with other Sleep buyers. The more people join, the more everyone saves. Next group buy runs when we hit 50 registrations.
📦 What to expect when it arrives
Premium box
Double-sealed. No cheap poly bags — every Medibro order ships in a quality box.
Amber glass
UV-protective amber glass preserves potency. Satisfying click-lid seal.
Little extras
Every first order includes a usage guide and a surprise freebie — see what you get.
Start today
Take your first dose the day it arrives — don't wait for a 'perfect moment'.
Your 30-day journey starts today
Future you will look back on this moment.
Based on typical customer reports. Individual results vary. Backed by our 30-day guarantee.
Premium packaging, inside and out
Amber glass jar
Blocks UV degradation, no plastic leaching
100% recyclable
Jar, cap, and box are fully kerbside recyclable
No artificial fillers
No magnesium stearate, silicon dioxide, or titanium dioxide
- Free UK delivery over £35
- 14-day hassle-free returns
- Secure checkout, audit-logged
- Manually compliance-reviewed
Order dispatched, tracking info sent. Most customers take their first dose the day it arrives.
Research shows it takes ~14 days to anchor a new habit. By now, most customers have found their ideal time of day.
At 8 weeks, customers report the strongest improvements. Consistency is everything with nutritional supplements.
Over 90% of Medibro subscribers are still on the same product at 3 months — the clearest signal a supplement is working.
Seasonally relevant now
August: Supporting muscle recovery and hydration is key this month
Three clinically evidenced ingredients: magnesium glycinate promotes GABA activation; Suntheanine® L-theanine increases alpha brain waves; Affron® saffron (28mg) improves sleep quality per 2020 RCT. No melatonin — safe for long-term nightly use.
Benefits
- ✓Sleep onset
- ✓Sleep quality
- ✓Anxiety reduction
- ✓Non-habit-forming
Dosing Guide
How to take Sleep Complex — Magnesium, Theanine & Saffron
Take 2 capsules 45–60 minutes before bed.
Always read the label. Consult a healthcare professional if you have any medical conditions or take prescription medication.
Quality & transparency
Why form matters
Medibro uses
Magnesium Bisglycinate
~80% absorbed
Others often use
Magnesium Oxide
Lower bioavailability
Glycinate is chelated — bound to an amino acid that the gut treats like food, not a mineral.
Oxide form passes through largely unabsorbed and commonly causes digestive discomfort. Studies show bisglycinate delivers 3-4x more elemental magnesium to cells.
How we compare
Medibro vs. typical high-street / marketplace alternatives
| Feature | Medibro | Others |
|---|---|---|
| Form | Glycinate (high absorption) | Oxide (poor absorption) |
| Elemental Mg per serving | 400mg | 100–200mg |
| Third-party tested | ||
| Filler-free capsules | ||
| 30-day guarantee | ||
| UK manufactured |
SACN identifies widespread magnesium inadequacy
The National Diet and Nutrition Survey found the majority of UK adults — especially women — consume below the Reference Nutrient Intake for magnesium.
Source: NDNS Rolling Programme 2019
Magnesium works best alongside:
Customers like you also explore
Your personalised stack
Recommended to pair with Sleep Complex
What to expect over time
Cellular magnesium levels start rising. Some people notice slightly improved sleep quality within the first few days.
Most users report deeper sleep and reduced evening anxiety. Muscle tension may ease noticeably.
Cellular magnesium at optimal levels. Energy, mood stability and muscle recovery consistently better.
Cardiovascular and bone benefits accumulate. Chronic deficiency symptoms resolve fully for most users.
What to expect
A realistic week-by-week guide for first-time users
The most common first change: falling asleep faster and fewer night wakings.
Muscle tension and cramps typically improve by week 2. Evening anxiety often softer.
Magnesium-dependent enzymes are now optimally supported. Most notice more stable energy and mood.
Cardiovascular and metabolic benefits become measurable. This is your new baseline.
Individual results vary. Consistency is key — don't assess before week 6.
Clinical evidence
Peer-reviewed research⏰ How to take for best results
Best time
Evening, 1 hour before bed
Take with
Water or food — reduces any GI sensitivity
Avoid with
Zinc supplements (competing absorption)
Magnesium glycinate is gentle enough to take any time. Evening use supports sleep quality.
Personalised dose calculator
For guidance only. Consult your pharmacist or GP if you take prescription medication.
Frequently asked questions
Pairs perfectly with
15% off when bought togetherVitamin D3+K2
Essential co-factor
D3 and magnesium work synergistically — each improves the other's absorption
Bundle total: £39.98 → £33.98
Find your perfect supplement stack
Answer 4 quick questions and get a personalised stack built around your goals, health history, and lifestyle.
Medibro Quality Score™
Independent assessmentPurity
94
Overall
out of 100
Potency
Value
How we compare
Medibro | Budget | Pharmacy | |
|---|---|---|---|
3rd-party COA testing | |||
Premium forms (glycinate, KSM-66, TG omega) | |||
Full ingredient transparency | |||
UK pharmacist reviewed | |||
No proprietary blends | |||
30-day money-back guarantee | |||
Eco-friendly packaging |
Comparison reflects general market observations. Specific brands may vary.
What outcomes matter most to you?
🌍 Ingredient sourcing
Magnesium Glycinate
Netherlands
Chelated for superior absorption
Glycine
Germany
Pharmaceutical-grade amino acid
UK deficiency data
Over 60% of UK adults consume below the recommended daily magnesium intake
Source: National Diet and Nutrition Survey, 2019
Common symptoms
Higher risk if
This information is educational. Always consult your GP before supplementing if you have a health condition.
Founded by a UK pharmacist
“After 12 years dispensing prescriptions, I was frustrated by the gap between expensive supplements and what the evidence actually supports. Medibro was built to source properly — clinical doses, verified purity, fair prices.”
— MPharm, GPhC registered · Medibro founder
Every formula is reviewed by our in-house pharmacy team before launch.
Supplement Interactions
What can I safely combine this with?
Magnesium is required to convert Vitamin D to its active form. Without adequate magnesium, Vitamin D supplementation is far less effective.
Magnesium and zinc can compete for absorption. Take at least 2 hours apart for optimal uptake of both minerals.
Magnesium and calcium work together in muscle contraction/relaxation. A 2:1 calcium:magnesium ratio is generally recommended.
⚕️ Always consult a healthcare professional before combining supplements with medication.
Stack Synergies
Science-backed pairings for better results
Magnesium is D3's essential co-factor — both nutrients activate each other synergistically
B6 significantly increases intracellular magnesium uptake and retention
Complementary minerals supporting immune function, testosterone, and sleep quality
Synergies based on published nutritional science. Individual results may vary. Always consult a healthcare professional before combining supplements.
Complete your stack
✨What customers say
From 20 reviews★ 4.9Customers love the effective combination of ingredients, particularly the magnesium, L-theanine, and saffron, which significantly improve sleep quality and reduce anxiety without causing grogginess.
Some users mention that the product is slightly expensive and that it may take 2-3 weeks to notice significant improvements in sleep quality.
This supplement is best for individuals struggling with insomnia, anxiety-driven sleep issues, and those working irregular shifts who need a non-addictive sleep solution.
Customer reviews
- ★★★★★Mark R.04/05/2026Genuinely life-changing for sleep
Was sceptical given I'd tried melatonin and valerian before with limited success. Two weeks in and I'm sleeping 7–8 hours solidly. The difference in my daytime energy is remarkable.
- ★★★★★Deborah C.Verified buyer30/04/2026Recommended to my whole book club
Four of us suffering poor sleep. All tried this at the same time. All four had significant improvement within 3 weeks. One friend who was most sceptical had the most dramatic result. Remarkable product.
- ★★★★★Alison B.Verified buyer29/04/2026Calmer through the day too
Taking these at bedtime and noticed my daytime anxiety is also reduced. The theanine and saffron carry over into the next day. Sleep and anxiety both improved with one supplement. Remarkable formula.
- ★★★★★Tom F.06/04/2026Game changer for shift workers
As someone who works rotating shifts, quality sleep has always been difficult. This has been the most effective supplement I've found for resetting my body clock. Highly recommend.
- ★★★★★Sarah A.31/03/2026Finally sleeping through the night
I've struggled with broken sleep for years and tried a lot of different supplements. This blend — the magnesium, L-theanine and saffron together — actually works. I fall asleep faster and wake up properly rested for the first time in ages.
- ★★★★★Jennifer C.Verified buyer27/03/2026Husband convinced me to try it
Husband bought this for himself after poor sleep, then I tried it. We're both now regular customers. Genuinely effective without any groggy morning feeling.
- ★★★★★Nicola F.Verified buyer23/03/2026Finally sleeping through the night
Insomniac for 3 years. Tried melatonin (made me groggy), Nytol (became dependent), CBD (did nothing). This is the first natural supplement that's genuinely worked. Fall asleep faster and don't wake at 3am. Life changing.
- ★★★★★Mark V.Verified buyer18/03/2026Consistent quality sleep at last
Used to rate my sleep 3 out of 10. Now consistently 7 to 8. Wake up actually refreshed. The combination of ingredients is scientifically sophisticated. This is not a placebo effect.
- ★★★★★Claire N.17/02/2026Calm, deep, restful sleep
Takes about 30 minutes to kick in. I take it 45 mins before bed and by the time I hit the pillow I feel genuinely relaxed. No grogginess the next morning either — that was my biggest fear.
- ★★★★★David K.Verified buyer12/02/2026Non-addictive sleep solution
The fact this is non-habit forming is huge. My GP was happy for me to try this and said the combination of glycinate magnesium + theanine + saffron is evidence-based. Two capsules 45 min before bed and I'm out like a light.
- ★★★★★Tom A.Verified buyer31/01/2026Night shift worker approved
Rotating shifts make sleep incredibly difficult. This supplement helps me fall asleep at non-standard times and achieve better quality sleep even in daytime. The magnesium glycinate is key for off-pattern sleep.
- ★★★★★Simon T.Verified buyer13/01/2026Better than prescription sleep meds
Consultant agreed to let me try this before prescribing temazepam. Three-way mechanism of action is more comprehensive than any single pharmaceutical. Sleep dramatically improved in 2 weeks. Not going near benzos now.
- ★★★★★Rachel H.Verified buyer27/12/2025Took it based on the reviews here
Read all the reviews and decided to try despite being sceptical of supplements. 4 weeks in and the reviews are completely accurate. Sleep is deeper, more restorative, and I wake up feeling rested. Legitimately excellent.
- ★★★★☆Helen W.Verified buyer16/12/2025Works well, slightly expensive
Genuinely improved my sleep quality. The saffron extract was the ingredient I was most sceptical about but the research is solid. Only 4 stars because of price — it adds up over months.
- ★★★★★Marcus A.06/12/2025Best sleep supplement out there
Tested this against other leading sleep supplements. Nothing else has worked as consistently as this triple combination. The Affron saffron in particular seems to make a real difference.
- ★★★★☆Frances P.01/12/2025Good but takes 2-3 weeks
No effect for the first 10 days. Then gradual but consistent improvement. By week 3 sleeping noticeably better. The slow onset suggests it is working through proper physiological pathways rather than sedating. Quality product.
- ★★★★★Gemma W.Verified buyer18/11/2025The saffron ingredient is the game changer
Sceptical about saffron but the Affron extract has 20 plus clinical trials. The mood-stabilising and sleep-improving effects are real. Combined with the magnesium glycinate and theanine this is the ultimate sleep formula.
- ★★★★★Henry D.Verified buyer06/11/2025Non-addictive, no hangover
GP recommended trying non-habit-forming sleep supplements first. This triple formula was his suggestion. Works as well as the low-dose zopiclone I was on, without dependency risk or morning grogginess.
- ★★★★★Patricia O.Verified buyer11/10/202510 years insomnia finally resolved
Decade of poor sleep trying every approach. This combination works on multiple pathways simultaneously. Glycinate magnesium for relaxation, theanine for calm, and saffron for mood. 3 weeks in and sleeping through consistently.
- ★★★★★Colin F.Verified buyer05/10/2025Anxiety-driven insomnia resolved
Anxiety causing hyperarousal at bedtime. L-theanine calms without sedation, magnesium glycinate supports GABA signalling, saffron regulates mood. The anxiety is quieter and sleep comes naturally. Life changing.
Questions & answers
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