tryptophan + 5-htp enter your system
two direct precursors to serotonin — one sustained, one fast-acting — give your brain the raw material it’s been missing.
now available exclusively on iherb · melatonin-free · made for better nights
nighttime deep sleep formula
protein that clocks in when you clock out for bed.
20g of slow-release milk protein isolate, paired with 8 research-dosed calming nutrients. no melatonin. no grogginess. just a full night, done right.
available now, exclusively on iherb
melatonin-free
gluten-free · non-gmo
nsf-certified facility
20gslow-release protein
250mgmagnesium bisglycinate
250mgl-theanine
0mgmelatonin
supports sleep
calms the nervous system without melatonin.
muscle recovery
20g protein repairs and rebuilds overnight.
calm & relaxation
eases stress before your head hits the pillow.
digestive health
gentle on the stomach, easy to digest.
the base ingredient
why milk protein isolate and not whey?
whey digests fast and burns off within an hour or two — useful after a workout, wasted at midnight. milk protein isolate releases slowly, feeding your muscles while you're actually asleep.
0
casein content
0
amino acid release
0
extra l-tryptophan
0
added sugar
illustrative amino acid availability over a night's sleep — slow-digesting casein vs. fast-digesting whey.
the formula
8 ingredients.
every one earns its place at night.
each dose is set at the level used in the human research behind it — nothing symbolic, nothing filler.
25g
milk protein isolate
delivers 20g of protein plus an extra 500mg of l-tryptophan for a slow, steady release through the night.
80% casein · 7–8h amino acid release
250mg
magnesium bisglycinate
a highly absorbable form of magnesium that promotes relaxation and supports deep sleep.
chelated form for superior absorption & fewer GI issues
220mg
l-tryptophan
the essential amino acid your body uses to support its natural sleep cycle.
200mg
5-htp
helps boost serotonin production for a calmer, quieter mind before bed.
500mg
gaba
supports stress relief and mental quiet as you wind down.
250mg
l-theanine
eases tension without drowsiness, so mornings stay clear-headed.
25mg
zinc citrate
supports the body's natural melatonin production and immune balance.
100mg
vitamin b6
helps convert tryptophan to serotonin to melatonin — your body's own sleep pathway.
we feed the pathway. not bypass it.
your brain converts tryptophan → serotonin → melatonin every night. when serotonin is low, your own melatonin never fully switches on. sleep protein rebuilds from the start.
serotonin builds night by night
gaba and magnesium bisglycinate calm the nervous system — reducing the high-alert state that wakes you at 2am.
your own melatonin turns back on
not from a bottle. not an override. your brain’s natural production — restored by feeding the pathway it always had.
25g casein rebuilds you for 7 hours
slow-release protein delivers amino acids all night — feeding muscle repair during your deepest sleep phases.
the 14-night experience
your nervous system learned to stay alert. 14 nights to unlearn it.
sleep protein isn’t a sleeping pill. it doesn’t work in 30 minutes. it works over 14 nights because it’s rebuilding something — not chemically overriding it.
think of it like training. you don’t go to the gym once and get strong. you show up. it compounds. sleep is the same.
start tonight →nights 1–4 · settling in
your body is adjusting.
sleep may feel similar. this is normal — expected even. the pathway is beginning to refuel. don’t stop here.
nights 5–9 · first shifts
the nervous system starts to quiet.
many people notice they’re waking less, falling back to sleep faster, or feeling calmer at bedtime. the 2am moment starts to ease.
nights 10–14 · the turn
waking up recovered. not just rested.
deeper sleep. less midnight waking. muscles feeling the overnight repair. this is what sleep protein was built for.
melatonin puts you to sleep. it doesn’t fix why you can’t.
melatonin replaces your brain’s own signal — and the longer you take it, the less your brain makes itself. sleep protein works differently.
melatonin
chemical override
- replaces your body’s own signal
- brain reduces natural production over time
- dependency builds with regular use
- no muscle repair benefit
- doesn’t address mood-driven disruption
- results fade — you need more
sedatives
suppression
- suppresses rem sleep cycles
- morning grogginess common
- dependency risk
- no recovery benefit
- doesn’t address root cause
- licensed for sleep aid only
sleep protein®
rebuilds from the start
- helps relieve sleep disturbances associated with mood imbalance
- helps temporarily promote relaxation
- assists in building lean muscle tissue
- source of amino acids for muscle protein synthesis
- results compound — every night builds on the last
- health canada npn licensed
how it works
one scoop, thirty minutes before bed.
step 1 · 0 min
mix & take
1 scoop (32g) with 250–300ml cold water or milk, 30–60 minutes before bed.
step 2 · nervous system
calms you down
magnesium, gaba, l-theanine, l-tryptophan & 5-htp help relax the body and quiet the mind.
step 3 · body
relaxes mind & body
zinc, magnesium and b6 work together to ease muscle tension for a full-body wind-down.
step 4 · overnight
deep, restorative sleep
milk protein isolate gradually delivers an extra 500mg of l-tryptophan, helping you stay asleep longer.
the ritual
mix. froth. unwind.
one scoop in cold water or milk. thirty seconds with a frother and you’ve got a smooth, creamy vanilla-lavender nightcap that actually tastes good. no chalk. no grit. just calm.
the result
a glass worth looking forward to.
creamy, lightly sweet, and ready in under a minute. the kind of night drink that makes winding down feel intentional instead of forced.
built on science
the label, in full.
supplement facts
serving size 1 scoop (32g) · 14 servings per container
| calories | 100 |
| protein | 20g |
| total carbohydrate | 4g |
| dietary fiber | 2g |
| added sugars | 0g |
| vitamin b6 | 100mg |
| calcium | 580mg |
| magnesium (bisglycinate) | 250mg |
| zinc (citrate) | 25mg |
| l-tryptophan | 220mg |
| 5-htp | 200mg |
| inulin | 2000mg |
| gaba | 500mg |
| l-theanine | 250mg |
| enzyme blend | 200mg |
| micellar casein | 12mg |
other ingredients: milk protein isolate, natural flavors, organic deoiled sunflower lecithin, sucralose, sunflower lecithin. contains milk.
directions
pour 250–300ml of ice-cold water or milk into a shaker or glass.
add 1 scoop of sleep protein.
shake well with a shaker ball, or use a hand frother for an extra-smooth mix.
drink 30–60 minutes before bedtime. adults 18+, once daily.
before you start: talk to a healthcare practitioner before use if you're pregnant, breastfeeding, or taking medication with serotonergic activity (including antidepressants, sam-e, st. john's wort, or dextromethorphan-containing cold medicine). discontinue and consult a practitioner if sleeplessness persists beyond 3 weeks. full warnings on pack.
Quality You Can Trust
Licensed. Tested.
Held to a Higher Standard.
Produced in an NSF-Certified Facility
Third-Party Tested, cGMP Compliant
Free of Banned Substances
Licensed by Health Canada (NPN)
Formulated in Canada, by Canadians
Muscle Insider · 2025
Named “Most Innovative Supplement” of 2025.
Recognized for bringing genuine innovation to a sleep-support category that had stayed unchanged for decades — the first protein built specifically for the night.
— Muscle Insider
built for real nights
the last thing you reach for before lights out.
whether you’re winding down after a long day or recovering from training, sleep protein belongs on the nightstand — not the medicine cabinet.
what people are saying
real nights, real reviews.
★★★★★
"fell asleep fast every night and clocked at least seven and a half hours of deep, restful sleep — no grogginess the next morning."
★★★★★
"switched off melatonin for good. i'm falling asleep faster, staying asleep, and waking up with less muscle soreness."
★★★★★
"my body felt calm within about 30 minutes — more settled than my usual magnesium routine, and my sleep stayed unbroken through the night."
★★★★★
"no chalky aftertaste, mixes smoothly with water or coconut milk, and it digests well with zero bloating."
★★★★☆
"far more than a sleep supplement — a full panel of protein, magnesium, zinc, tryptophan, 5-htp, gaba and theanine in one scoop."
★★★★★
"works as advertised — helps with sleep without melatonin, and gives me a solid source of late-day protein."
real people, real nights
part of the evening, not another chore.
people who try it once usually make it a habit — because it actually tastes good and they wake up feeling like they slept.
who it's for
whatever your day looks like,
your night can use this.
stressed professionals
college students
athletes of all levels
those with mild insomnia
busy parents
anyone needing quality sleep
coming soon
we're bringing sleep protein home.
Formulated in Canada by Canadian scientists, held to Health Canada's licensing standard from day one. Our Canadian retail debut drops soon.
questions
frequently asked
no. sleep protein is completely melatonin-free. it supports your body’s natural sleep pathway with tryptophan, 5-htp, magnesium, zinc and b6 instead of adding exogenous melatonin.
most people report waking clear-headed. the formula is designed to support deep sleep without next-day residual sedation. if you’re sensitive to any ingredient, start with a half scoop.
mix one scoop with 250–300 ml cold water or milk 30–60 minutes before bed. consistency matters more than exact timing.
yes. it delivers 20 g of slow-release milk protein isolate overnight for recovery, is free of banned substances, and is produced in an nsf-certified facility.
vanilla lavender sky — lightly sweet, creamy, no chalky aftertaste. mixes smoothly with water or milk.
talk to a healthcare practitioner if you take medications with serotonergic activity (antidepressants, sam-e, st. john’s wort, etc.). otherwise it pairs well with most evening routines.
sleep protein
vanilla lavender sky · 14 servings
shop now
get notified
be first to know when sleep protein lands in canada. no spam — just the launch date.
we respect your inbox. unsubscribe anytime.