Thank you.

And a quiet question.

To everyone who keeps going when the rest of the world is asleep: thank you.

Shift work asks the body to stay sharp at the hours it was built to rest. Over weeks, the tiredness accumulates into something sleep on a day off doesn't fully clear.

So here is the quiet question: when did you last rest during a shift, not merely stop?

A short, planned nap is one of the simplest evidence-based tools available. This article looks at what the research shows, how to nap effectively on shift, and how to wake up ready rather than groggy.

What the research shows

Studies use different settings, nap lengths and outcome measures. Treat the findings as a guide to what tends to help, not a guarantee for any individual.

Research backs the power of a well-timed nap. A systematic review and meta-analysis of shift workers, including emergency medical staff, found that scheduled naps during a shift improved performance and lowered fatigue [1]. For nurses on night shifts, a mixed-methods review confirmed napping is a useful countermeasure, but it also called on managers to tackle the real barriers, such as staffing and space [2]. The benefits show up quickly: a meta-analysis of 11 studies involving 381 people found cognitive performance improved after a short nap, particularly alertness [3]. Even 10 minutes can help, with a 2023 study in Sleep showing a 10-minute nap lifted alertness and mood, while 30 minutes produced broader benefits [4]. There is no single perfect length, though. A review of brief, moderate and long night-shift naps found mixed results and low-quality evidence, concluding that the best length depends on when you nap and what you need to do afterwards [5].

Why short naps work

In the first 20 minutes or so, most people remain in light sleep. Waking from light sleep is relatively easy. Longer naps increase the chance of entering deeper sleep stages, which can produce sleep inertia — the groggy, disoriented feeling on waking. Sleep inertia usually fades within about 15 minutes, but it matters when you must return immediately to clinical tasks.

How to take a power nap on shift

These are practical ideas to try, not a treatment protocol. Always follow your workplace rest and break policy.

• Tell your team first. Agree who covers for you and who will wake you if needed. Knowing you will be woken makes it easier to switch off.

• Use a designated rest space. A staff room, rest room or quiet office set aside for breaks. Avoid patient areas.

• Make it dark, quiet and cool. Dim the lights. Use an eye mask or earplugs if available. Loosen anything tight.

What the studies cannot tell us

• Many napping studies are small and conducted in sleep laboratories rather than on real wards.

• Reviews of night-shift naps rate the evidence as low quality; the ideal nap length remains debated.

• Naps reduce tiredness on the day. They do not replace sufficient sleep over time, nor do they correct rosters that leave too little recovery time.

When to get help

If you are exhausted most days, fall asleep without meaning to, snore heavily, or wake up unrefreshed no matter how long you sleep, speak with your GP. These can be signs of a sleep condition worth investigating.

If tiredness is wearing down your mood and things feel heavy, please reach out: Lifeline 13 11 14 (24/7), or 000 in an emergency.

Rest is not something you earn only at the end of the shift. It is part of how you keep doing the work you care about.

On a long shift, rest is often the first thing to go. Four centuries before night rosters, people already knew what science now confirms: sleep holds everything else together.

How rested are you, really?

A 20-minute reset helps on a hard shift. But if you are reaching for one every day, it is worth asking what your rest is telling you.

The MarisGraph Assessment maps your wellbeing across eight pillars, including Rest, Breathing, Hydration and Thoughts. You will see where you are strongest and which pillar is draining you most, so you know where one small change will count.

• Built for healthcare professionals and shift workers

• Your results are private to you

• A tool for self-reflection, not a diagnosis

TAKE THE MARISGRAPH ASSESSMENT