No air conditioning? 7 products I'd buy for a cool night's sleep in the 4th of July mattress sales

Two girls sitting on Brooklyn Bedding Copperflex Pro Hybrid mattress on wooden bedframe with plants and shelving either side of bed

(Image credit: Future)

Trying to sleep during a summer heatwave is the worst, especially if you aren't blessed with air-conditioning. Well, I live in a building with no air conditioning — but I know ways to sleep cool in summer.

A lot of these methods are free and easy to implement, such as being strategic about when you open your windows and not eating close to bed, but it can help if you put together a cooling sleep setup.

Luckily, a lot of this year's best mattresses contain cooling materials and features, but there are plenty of other cooling sleep products to buy if you're not in the market for a new bed.

That's why I've put together seven of the best cooling sleep deals to shop in today's 4th of July mattress sales, from mattress toppers to protectors. And if you're hungry for more mattress deals, check out our top 11 mattress deals this 4th of July.

7 top 4th of July buys for cooler sleep every night

1. Brooklyn Bedding CopperFlex Pro Hybrid Mattress: twin was $932 now $652.40 at Brooklyn Bedding
Sleep tech writer Eve Davies recently tried this bed out for us, and her Brooklyn Bedding CopperFlex Pro Hybrid mattress review was glowing. She praised the premium feel for an affordable price and the effective specialist cooling. Built with comfort foams high infused with high thermal conductivity fibers, the mattress helped her sleep soundly during heatwaves. the standard discount at Brooklyn Bedding is 25% off, but a 30% sale for today only means you can get a queen for $932.40 was (1,332). Extras include a 120-night sleep trial and a limited lifetime warranty.

2. Cocoon by Sealy Chill Mattress: twin was $619 now $399 at Coccon by Sealy
While the CopperFlex Pro may be under $1,000 for 4th of July, the Cocoon by Sealy is 35% off at all times, and keeping a queen at a steady price of $699. In our Cocoon by Sealy Chill mattress review we loved the superb temperature control it offered for such a low price, and a deal that throws in a free bedding bundle and 100-night sleep trial doesn't hurt either. It's no wonder it's our top budget pick in our best cooling mattress guide.

3. Helix Premium Mattress Topper with GlacioTex: twin was $373.33 now $272.54 with code TOMS27 at Helix
The Helix Premium Mattress Topper is a good investment if you don't want to buy a cooling mattress. The topper features airflow-boosting microcoils and a removable cooling cover made from heat-dissipating GlacioTex. Our tester for the Helix GlacioTex Premium Mattress Topper review praised the cooling features and plush comfort, so we recommend it for anyone who wants to both cool down and soften hard beds. While this is a premium cooling topper, a queen is now reduced to $364.03 with our exclusive TOMS27 discount code.

4. Hybrid Lux Mattress Topper: twin was $199.95 now $149.95 at ViscoSoft
ViscoSoft is a go-to destination if you want to spruce up your dorm bed, and the Hybrid Lux is both cooling and affordable thanks to a 25% discount. Our best mattress toppers guide named it the best pillow top topper, and our Viscosoft Hybrid Lux Mattress Topper review praised its plush-yet-supportive surface. With a breathable Tencel cover and and gel-infused foam, the Hybrid Lux is great if you want to add hotel-luxury cooling for a lower price. A 3" queen is now $199.95 (MSRP: $295.95), and you'll also get a 90-day trial and 5-year warranty.

See more Mattress 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 hugely interested in the relationship between good sleep and overall health, interviewing a wide array of mattress and sleep experts to create well-informed articles about important topics such as nutrition, sleep disorders (from sleep apnea to night terrors), lucid dreaming, sleep hygiene, and mattress care. She is also our specialist on mattress toppers — producing mattress topper reviews and taking care of our Best Mattress Toppers 2025 guide — and takes the lead on all content related to fiberglass-free mattresses for a clean, non-toxic sleep. Outside of Tom's Guide, she has written for Ideal Home, Homes & Gardens, and Marie Claire.

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