The cooling sleep deals that will set out before Prime Day ends

A collage featuring cooling sleep gadgets and mattresses — (Image credit: Amazon)

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Amazon Prime Day has arrived in the midst of a scorching hot summer, making it the perfect time to save on cooling sleep gadgets designed to help you get the rest you need.

Snapping up a cooling sleep deal is one of the best investments you can make, especially when you consider that heat-related insomnia isn't just a summer issue — research shows the average global citizen is already losing 44 hours of sleep a year to increasing nighttime temperatures.

While not all deals in this days-long sales event are worth buying, these cooling products are some of the best Amazon Prime Day mattress and sleep deals we've seen so far that we predict will sell out fast. From heat-dissipating pillow cases to portable air conditioning units, these Amazon deals will have you falling asleep fast during heatwaves...

The best US cooling sleep deals

The best UK cooling sleep deals

Frances Daniels is a PPA-accredited journalist and Sleep Staff Writer at Tom's Guide with an MA in Magazine Journalism from Cardiff University. Her role includes covering mattress and sleep news and writing sleep product reviews and buyer's guides, including our Best Hybrid Mattress 2025 guide. She is interested in the relationship between sleep and health, interviewing an array of experts to create in-depth articles about topics such as nutrition, sleep disorders, sleep hygiene, and mattress care. She is also our specialist on mattress toppers — producing bed topper reviews and taking care of our Best Mattress Toppers 2025 guide — and leads content relating to fiberglass-free beds for a non-toxic sleep. Outside of Tom's Guide, she has written for Ideal Home and Marie Claire.