Good Morning Britain's doctor Sarah Jarvis has warned to be careful when trying some of the most popular cooling hacks amid the UK heatwave.
Kate Garraway gave Good Morning Britain viewers some handy heatwave hacks to help people get a better night's sleep - but she still struggled to sleep, despite taking her own advice.
She told GMB co-stars Adil Ray and Laura Tobin she slept terribly, struggling to get some rest because of the humid and "muggy" night.
The UK has been experiencing record-breaking temperatures, with the mercury hitting 41 degrees - but it's brought humid and uncomfortable heat along with it, especially at night.
Discussing her hacks, Kate said: "I tried the whole dipping your bed sheet in water, it does work a bit but then you get too chilly."
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Adil confessed that he had air conditioning at his hotel provided by ITV.
But as viewers began offering their tips to Kate, Dr Sarah offered a warning about them.
A popular idea was to fill a hot water bottle with cold water and then stick it in the freezer.
Kate said she'd tried it, telling the viewers: "It does work, it does help definitely."
Sarah was on hand to warn about having a cold shower before bed, before also telling viewers to exercise caution with the hot water bottle hack too.
She advised: "We don't want to have a really cold shower. If you have a cool shower and then allow the water to evaporate off your skin... it will definitely help cool you down."
Sarah then added: "They stole my idea about the cold hot water bottles, but please don't forget; never put ice directly onto your skin because that can cause ice burns.
"But a cool flannel around your neck, and possibly putting sheets in the freezer, but not again risking any ice burns, can help."
Kate got confused though, unsure how to fit a whole duvet into a freezer, but Sarah was quick to point out that wasn't the case.
She said: "Oh I think I had in my mind a duvet," with Sarah adding: "Yeah a bit different, don't need one of those at the minute."
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