Quick answer: for police, paramedics, firefighters and other first responders, caffeine works best as small, regular top-ups early in a shift, stopped several hours before you plan to sleep. It can buy you an hour or two of alertness, but it doesn't replace sleep. If you're drowsy behind the wheel, the safe move is still to stop and rest.
Why first responders run short on sleep
Rotating rosters, overtime, call-outs and court dates mean many frontline workers sleep at odd times, and not enough. In a large study of nearly 5,000 North American police officers published in JAMA, about 40% screened positive for at least one sleep disorder. Officers who screened positive were also more likely to report falling asleep while driving.
Coffee can help you get through a long shift. The trick is using it in a way that doesn't steal the sleep you need before the next one.
How to time caffeine on a rotating roster
- Have it early. Your first caffeine belongs at the start of the shift, while you've got the most hours ahead.
- Top up small. Australia's Sleep Health Foundation notes that small, regular doses of caffeine may help maintain alertness, and that caffeine's help usually lasts an hour or two. Small amounts as you need them beat one big hit.
- Know your cut-off. Caffeine takes around 5–6 hours to fall by half, and longer for some people. Stop several hours before you plan to sleep, whether that's after a night shift or before an early start.
- Watch the sugar. The same foundation warns that sugar can make you sleepier 30–90 minutes later, so sweet energy drinks and pastries can backfire.
Working nights? Our night shift coffee guide walks through a full 12-hour roster, hour by hour.
Driving tired: what actually helps
A lot of frontline work happens in a vehicle, and drowsy driving is dangerous. If you notice yawning, heavy eyes, drifting in your lane or missing signs:
- Pull over somewhere safe as soon as you can.
- Take a 15–20 minute nap, no longer, then walk around for 5–10 minutes before you drive again.
- Use caffeine as a short-term helper, not a fix. It can take the edge off for a while, but only sleep pays back sleep debt.
Always follow your service's own fatigue and driving policies.
Why coffee chews fit the job
- Nothing to spill. No hot cup in the car, the cab or the truck.
- Fits anywhere. A 15 g tin sits in a vest pocket, kit bag, locker or glovebox.
- Ready in seconds. No machine, no queue and no cup to find between jobs.
- Small, controllable doses. Each chew is a sip-sized top-up, so you can have one, see how you feel, and stop on time.
- Sweetened with xylitol. Full nutrition information is on each product page.
Approximate caffeine per tin of about 25 chews: 50 mg for Choco Mocha, Caramel Macchiato and Hazelnut Latte; 70 mg for Flat White and Iced Mint Coffee; 140 mg for Double Espresso. For comparison, a single espresso shot has around 80 mg. Try a few strengths with the Tasting Set, or see the full Coffee Chews range.
Littos Everyday Heroes
Police, fire, ambulance and other emergency and frontline responders, as well as serving defence force members and veterans, can join Littos Everyday Heroes. Once your eligibility is confirmed, you get 15% off Littos Coffee Chews. It's our thank-you for the work you do.
First responder coffee FAQ
Can caffeine replace sleep on a long shift?
No. Caffeine can help with alertness for an hour or two, but it doesn't remove the need for sleep. Use it to support a good sleep plan, not instead of one.
When should I stop caffeine before sleeping after a shift?
Several hours before you plan to sleep. Many people find about six hours works. If you still struggle to sleep, move your cut-off earlier.
How much caffeine is too much?
The European Food Safety Authority considers up to 400 mg a day, and up to 200 mg in one go, safe for most healthy adults. Count everything: coffee, tea, energy drinks, cola and coffee chews.
Who shouldn't have coffee chews?
Littos Coffee Chews contain caffeine and are not recommended for children, pregnant or breastfeeding women, or people sensitive to caffeine. They contain milk, and the xylitol in them is toxic to dogs, so keep tins away from working dogs too. If you have a health condition or take medication, check with a health professional first.
This article is general information, not medical or operational advice. Sources: Rajaratnam et al., JAMA (2011); Sleep Health Foundation: Drowsy Driving; NIOSH training on shift work and caffeine; EFSA caffeine safety opinion.