Britons may be waking up feeling groggy and tired after a long night of loud fireworks and wall-to-wall coverage of US election news.

Having to face a full day of work and daily activities if you haven't had enough sleep can be really difficult. You may feel like you're wading through syrup or you're simply unmotivated to get on with your day.

Don't despair! There are a number of ways you can help pep yourself up for the rest of the day and keep the sleepiness at bay - at least until you can get yourself into bed for a much-needed early night.

Here are five easy ways to refresh your mind and body if you're struggling from a lack of sleep:

Taking a cold shower on a cold day might seem like a terrible idea, but doing so can give you the eye-opening jolt of energy you need to get going.

Research shows that cold water stimulates the production of feel-good hormones and increases circulation, making you feel more alert.

A study by researchers at the University of Portsmouth found that just 20 minutes of exercise can help boost brain power after a bad night's sleep.

Exercise expert Gavin Cowper, founder of Exersci, recommends four activities you can do within 20 minutes to offset the negative effects of a poor night's sleep, including:

Music can have a great impact on energy levels, so playing some of your favourite, most upbeat tunes is a fantastic way to wake yourself up.

In 2015, Spotify teamed up with psychologist David M Greenberg to discover what kinds of songs are best for waking up, and identified three main elements. These included:

Food is fuel, and this becomes even more true when you're running on empty. What you choose to eat throughout the day can make a huge difference to your energy levels, and help you beat the 3pm slump.

Make sure you eat an energy-boosting breakfast or lunch that includes fruits like bananas and avocados, as well as complex carbohydrates like wholegrain bread or pasta, beans and lentils, and vegetables. These can help give you sustained energy, rather than boosting energy levels suddenly but temporarily.

It might sound counterintuitive, but sometimes what you really need is a power nap to help your body recharge and get through the rest of the day.

Sammy Margo, sleep expert at mattress brand Dreams, says taking a brief nap can help you feel "more rested and refreshed". "A quick nap can help as long as it's between 10 and 90 minutes," she advises.

If you find yourself needing a little midday kip, Margo's top tips include: