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AdvertisementThe Back Half · A TILT publication
Research · Night shift
They kept 37 people awake all night. Then they tested their attention.
A 2025 trial gave sleep-deprived adults caffeine with L-theanine, or a dummy pill. The pairing won on speed and accuracy. It's the same pairing in every can of TILT.
$81.99 delivered, with a Bonus Mixed 8 Pack on your first slab. 100 days to decide. Skip or cancel online, anytime.
“No after taste, and what a flavour! The peach is so good. Days gone with no crash!!!”
It's 3am. You've been up all night, and the job still needs your eyes on it.
That's exactly the state a team of researchers set out to test.
The trial
37 people, one sleepless night, two kinds of capsule
In 2025, researchers in Sri Lanka kept 37 healthy young adults awake all night.1
In the morning each person swallowed a capsule. It was either caffeine with L-theanine or a dummy pill. Nobody knew which one they got, and neither did the researcher running the test. On another morning they swapped.
Then they sat a reaction test on a screen. Spot the rare picture that matters. Ignore the rest. Fast.
- 1
Up all night.
Every person took the test sleep-deprived, after a full night awake.
- 2
One capsule.
Caffeine with L-theanine, or a dummy. Double-blind.
- 3
Fifty minutes later.
They sat the test again, and the team compared before and after.
- 4
Brainwaves too.
A 32-channel EEG cap measured how fast their brains got onto the target.
What they found
The pairing beat the dummy pill on speed and accuracy
than the dummy pill, in people who'd been up all night
Nawarathna et al., British Journal of Nutrition, 2025
On caffeine with L-theanine, people picked out more of the pictures that mattered. They reacted faster too, and by more than the dummy pill managed.
Their brainwaves showed it, with a bigger and quicker response to the target.
“…significantly enhances the accuracy and speed of selective visual attention in acutely sleep-deprived individuals…”
In plain English? After a night with no sleep, the pairing helped people stay on the thing that mattered.
A few honest things first
What this trial doesn't prove
TILT wasn't in this trial. It used a capsule with more caffeine than a can of TILT.
It was one night, in a lab, with 37 people. One trial doesn't settle anything.
What it does show is what this pairing is for. Staying on the job when it's the last thing your head wants to do.
Built for the 2AM crew
Locked in at 3am. No crash at knock-off.
Caffeine helps you stay alert. TILT pairs it with L-theanine to help keep your attention on the task.
It's low sugar and naturally sweetened, and it tastes good at 3am. No crash. No jitters.
$81.99 delivered, with a Bonus Mixed 8 Pack on your first slab. 100 days to decide. Skip or cancel online, anytime.
4.9 from 27 reviews
What people say
“This drink is hectic, No weird feeling on your tongue and teeth, No after taste, and what a flavour! The peach is so good. Days gone with no crash!!!”
“Great flavours without being overly sweet. Natural tasting”
“1 thing I hate about energy drinks is the gross as after taste they leave…. this drink had none of that! The flavour is so delicious and refreshing!”
“I generally don't like drinking energy drinks, but when i tried Tilt it changed my perspective, its got such a nice & unique flavour that cant be found in standard energy drinks.”
Start here
Start with your first slab
24 cans, both flavours: Raspberry Lime and Peach Iced Tea. Low sugar, naturally sweetened.
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Real people, real cans.
Questions people ask first
Was TILT tested in the trial?
No. The trial used a capsule with 160mg of caffeine and 200mg of L-theanine. A can of TILT has 105.6mg of caffeine and 198mg of L-theanine. Same pairing, different dose, and TILT itself hasn't been trialled.
What if I don't like it?
Your first order has a 100-day money-back guarantee. Tell us within 100 days and we refund it in full. You keep the cans, and the bonus pack is yours either way.
Do I have to stay subscribed?
No. Skip, pause or cancel online, anytime. A new slab arrives every 4 weeks until you do.
How fast does it ship?
Orders placed Monday to Friday are dispatched within 24 hours from Perth. Shipping on a slab is free.
What's in it?
Caffeine with L-theanine. Low sugar, naturally sweetened, no artificial colours or preservatives. The full panel is on every can and on the product page.
How much caffeine is in a can?
105.6mg in a 330ml can. One can a day. Not for kids, or for anyone pregnant, breastfeeding or sensitive to caffeine.
Built for the 2AM crew
The back half of a night shift, sorted
The research is the reason we built TILT on caffeine with L-theanine. The reason people keep it in the fridge is how the shift feels.
Try it on your next run of nights. If it's not for you, your first order is refunded and you keep the cans.
$81.99 delivered, with a Bonus Mixed 8 Pack on your first slab. 100 days to decide. Skip or cancel online, anytime.
About this page. This is an advertisement for TILT Energy. It was written by TILT and is not independent journalism. TILT was not tested in any study on this page, and the doses in those studies differ from a can of TILT. Contains caffeine. Not recommended for children, pregnant or lactating women, or individuals sensitive to caffeine. Consume no more than 1 can per day.