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Excellent • Trustpilot Score: 4.6
Overall Trustpilot Score: 4.6
Sleep better.
Recover faster.
Wake up ready.
The clinical-grade sleep supplement trusted by Olympic medallists, teams and everyday high performers.
Wake with fresh legs, not yesterday’s fatigue
Wake with fresh legs, not yesterday’s fatigue
91% of reported improved sleep quality*
Best Supplement - GQ Sleep Awards 2025
10,000+ customers are recovering better
GET NIGHT POWDER
Excellent • Trustpilot Score: 4.6
Overall Trustpilot Score: 4.6
Sleep better.
Recover faster.
Wake up ready.
The clinical-grade sleep supplement trusted by Olympic medallists, teams and everyday high performers.
Wake with fresh legs, not yesterday’s fatigue
Wake with fresh legs, not yesterday’s fatigue
91% of reported improved sleep quality*
Best Supplement - GQ Sleep Awards 2025
10,000+ customers are recovering better
GET NIGHT POWDER
You optimise everything except the 8 hours that matter most.
You're doing everything right and still waking up feeling wrong. The energy, the focus, the drive you used to take for granted - it's not gone. It's just not being restored overnight.
– Waking up tired no matter how you slept
– Afternoon crashes are the new normal
– Mental sharpness that fades
– Training has plateued despite your efforts
You optimise everything except the 8 hours that matter most.
You're doing everything right and still waking up feeling wrong. The energy, the focus, the drive you used to take for granted - it's not gone. It's just not being restored overnight.
– Waking up tired no matter how you slept
– Afternoon crashes are the new normal
– Mental sharpness that fades
– Training has plateued despite your efforts
"I was running on absolute fumes, even though I was living healthier than I ever had in my twenties.
So, I looked to my husband (4x Olympic Gold Medal winner, Ben Ainslie) and what he was doing differently to the rest of us."
So what do the best do differently?
"People think the best athletes are the ones that train the hardest. But the best athletes are the ones that recover the best. At the top of the pile is sleep."
So, I looked to my husband (4x Olympic Gold Medal winner, Ben Ainslie) and what he was doing differently to the rest of us."
Matt Weston, 2x Olympic Gold-Medallist
You don't need to be an Olympian to recover like one.
Six clinical-grade ingredients. No sedatives. No grogginess. Just recovery you feel the next morning.
Tomorrow just got a lot more productive.
Magnesium and L-Glycine support your body’s natural sleep mechanisms — helping you fall asleep faster and stay asleep longer. No sedatives, no next-day grogginess.
• 91% said they fall asleep more quickly*
• 89% feel more rested when waking*
When your sleep is actually restorative, your energy doesn’t cliff-edge after lunch. Affron® saffron supports sleep quality and mood, so you wake up with energy that sustains rather than fades.
85% recorded productivity increases*
86% felt more energy throughout the day*
The hardest part of sleep is the bit before it. Affron® saffron extract has been shown in double-blind trials to support relaxation and ease the mental noise that keeps you staring at the ceiling.
91% reported falling asleep more quickly*
89% found it easier to calm their mind at bedtime*
CherryPure® tart cherry extract supports inflammation reduction and muscle recovery while you sleep. The same ingredient used by endurance athletes and elite rugby teams to bounce back between sessions.
85% reported that they suffer less from aches and pains*
*Results from a third-party study conducted on 80 healthy adults assessing the perceived effects NIGHT POWDER in combination over 12 weeks.
Trialled and Tested.
Developed by human performance experts to bring real-world results.
91%
of trialed participants:
Felt less groggy upon waking.
Results from a third-party study conducted on 80 healthy adults assessing the perceived effects of NIGHT POWDER over 12 weeks.
88%
of trialled participants:
Recorded improved sleep scores
View independent study
Results from a third-party study conducted on 80 healthy adults assessing the perceived effects of NIGHT POWDER over 12 weeks.
What's inside.
And why every dose matters.
Every ingredient is branded, traceable, and dosed at the levels used in clinical research. No proprietary blends. No filler. No underdosing expensive ingredients for margin.
Affron™ is the most clinically-backed saffron extract, used at the 28mg dose commonly found in sports recovery research. Supports the transition from training mode to rest mode, helping with relaxation and emotional balance after demanding sessions.
The amino acid of choice found in high concentrations in muscle tissue. Increasingly popular in athletic circles, particularly among endurance athletes who take it 30-60 minutes before bed.
Clinically studied ingredient backed by human trials in areas like muscle recovery, inflammation, and uric acid levels. This concentrated source of naturally occurring polyphenols and anthocyanins is widely used by professional endurance athletes as part of their recovery routine.
Reduces tiredness and fatigue and supports normal muscle function and electrolyte balance. Contributes to normal nervous system function, and the citrate form is absorbed more quickly to help you wind down faster.
Cellular support minerals that contribute to normal energy metabolism and the protection of cells from oxidative stress. Support normal connective tissue formation, important when logging high weekly mileage.
Third-party tested,
trialled and certified.
Every batch is certified by Informed Sport so that they are safe enough for even Olympic athletes to use (and they do).
91%
Wake up feeling
less groggy.
92%
Find it easier to get to sleep.
86%
Have more energy throughout the day.
87%
Found their mood has improved.
*Results from independent 12-week study of 80 adults
Make your days count.
Formulated by human performance specialists to enhance relaxation and recovery processes, just one scoop of NIGHT POWDER supports lasting energy and mental clarity when you need it most.
Starting with your nights.
Unwind
Relaxes the mind and body before bed.
ENERGISE
Helps you power through your days.
FOCUS
Supports mental clarity and sharpness.
RECOVERY
Supports muscle repair and immunity.
Winner of Best Sleep Supplement - GQ Sleep Awards 2025
A Human Performance Team in Every Scoop.
Formulated by the performance specialists behind four-time Olympic champion sailor, Ben Ainslie, to help high performers show up at full capacity, every time. At work, at home, in life.
Tomorrow just got more productive.
Tomorrow just got a lot more productive.
Wake up refreshed and clear-headed with Magnesium and Copper.
Better sleep scores: 88% recorded improvements*
Wake up ready: 92% felt less groggy upon waking*
Fight fatigue and the afternoon slump with Manganese, Copper and Magnesium.
Get More Done: 85% recorded productivity increases*
More Energy: 86% felt more energy throughout the day*
Relax and unwind with affron Saffron. The most studied saffron ingredient, worldwide.
Relax: 91% reported falling asleep more quickly*
Unwind: 92% found it easier to get to sleep*
*Results from a third-party study conducted on 80 healthy adults assessing the perceived effects NIGHT POWDER in combination over 12 weeks.
don’t just track metrics. optimise.
Watch your recovery scores soar.
Join other high-performers who saw big improvements in their recovery scores over a 12-week trial of NIGHT POWDER.
How it works
NIGHT POWDER was developed to work with your body's circadian rhythm, enhancing these relaxation and recovery processes to support energy and mental clarity when you need it most. In powder form for maximum bioavailability.
1.
Mix with water 30-90 mins before bed.
2.
Clinically-backed ingredients work with your body's circadian rhythm.
3.
Wake refreshed, not groggy.
Made with 100% natural ingredients. Tested by Informed Sport.
Plant-based
No GMOs
Nut Free
Gluten Free
Excellent • Trustpilot Score: 4.6
Trusted across every discipline.
The high performers who can't afford to get recovery wrong.
“NIGHT POWDER is something I've come to rely on.”
Huw Nightingale
Olympic Gold Medallist
“NIGHT POWDER
has made such a big difference to my sleep and recovery.”
Matt Weston
Double Olympic Gold Medallist
“It definitely helps me sleep. Even at Everest basecamp.”
Kenton Cool
Record Breaking Mountaineer
“NIGHT POWDER
has been a real game-changer for my sleep.”
Dani Rowe
Olympic Gold Medallist
“NIGHT POWDER has been aiding my sleep for over a year”
Dame Sarah Storey
Record Breaking Paralympian
“I won my first title this year with the help of NIGHT POWDER.”
Ade Omitowoju
Gold Medal Winning GB Triple Jumper
Join the thousands who are recovering better.
4.6 out of 5 stars
Based on 5443 reviews
I couldn’t recommend the ainslie + ainslie products more. Probably the best supplements I’ve ever taken.
BW
B Williams
Oct 2025
I sleep deeper, more time in core and deep sleep, and my resting heart rate has dropped from 70 to 58 bpm. Highly recommended.
GP
G Preston
Nov 2025
I genuinely have never experienced a 100 Garmin body battery score until I started using ainslie + ainslie Day and Night powders.
AS
A Smith
Dec 2025
They have improved my sleep and recovery, measurably via Garmin. Inflammation from hard training has reduced too.
AB
A Beesley
Oct 2025
Award winner
"ainslie + ainslie has produced the best sleep supplement on the market."
GQ Sleep Awards, Best Supplement 2025
Ready in 30 secs
Precision Nutrition.
Only what works.
The highest-quality ingredients, delivered in meaningful doses and in powder form for superior bioavailability.
Formulation includes:
Affron®
Cherrypure®
Magnesium
L-Glycine
FULL INGREDIENT LIST
stress-tested
by high performers.
“Elite sport pushes you to the limit. Anything that aids recovery is a game-changer.”
Hannah Mills
Double Olympic Champion & America’s Cup Skipper
I’ve been using it for a year now and it honestly helps…even at Everest Basecamp!
Kenton Cool
Record-Breaking Mountaineer
Rated Excellent on Trustpilot • With an aggregate score of 4.6
We share more with elite athletes than you think.
“Like athletes, we need efficient energy production, robust immune support and effective recovery mechanisms to maintain peak performance and long-term wellbeing. This universal need for cellular resilience and system efficiency really means optimal performance is essential for everyone.”
Aidan Goggins
BPharm, MSc Nutr Med
Nutritional Medicine Director
ainslie + ainslie Formulation Advisor
Performance People Podcast
Each week Georgie Ainslie talks to some copy here about the podcast that briefly explains it.
Listen now to the latest episode:
Jamie Chadwick /
Eat, sleep race repeat.
May 20, 2025 • 37 mins
Frequently asked questions.
Everything from what's inside to how it tastes.
Absolutely. NIGHT POWDER supports better rest and recovery, for elite athletes or anyone with a high-demand lifestyle, regardless of your activity level, profession or lifestyle.
NIGHT POWDER’s USP lies in the people and thinking behind it. It was developed in elite sport which relies on innovation to maximise human performance, and central to which is how to enhance an individual’s rest and recovery.
Its ingredients have been chosen for their evidence base to support recovery, cognition, energy and immunity.
We only use and work with the very best ingredients, materials, suppliers and partners.
We are extremely thorough and careful in our sourcing of evidence-backed ingredients from our ingredient producers. NIGHT POWDER is made by an Informed Sport manufacturer with expertise in sports nutrition and that holds itself to rigorous standards regarding product quality.
Informed Sport is a global quality assurance and supplement certification programme for sport supplements.
Products certified by Informed Sport undergo a rigorous pre-certification and post-certification process, before being declared free from any contaminated ingredients, and safe for athletes to use.
Cherry. During our 12-week independent trial, 93% of users said they liked the flavour of NIGHT POWDER after using it for the first three days and many provided additional positive comments on the taste and texture. Over the duration of the trial, 98% of users reported that NIGHT POWDER was easy to include in their routine.
The NIGHT POWDER ingredients are: L-Glycine, Magnesium Citrate, Acidity Regulators (Citric Acid, Malic Acid), Natural Flavourings, CherryPURE® Montmorency Tart Cherry Powder, Chicory Root Fibre, Colour (Beetroot Red), affron® Saffron (Crocus Sativus L.), Sweetener (Steviol Glycosides from Stevia), Manganese Bisglycinate, Copper Bisglycinate, Pyridoxine Hydrochloride.