I test mattress toppers — here are the 5 best deals to shop in the 4th of July sales

The Tempur-Pedic Tempur-Adapt Topper on a mattress in a bedroom, a Tom's Guide price drop deals graphic (right)
(Image credit: Tempur-Pedic)

As a mattress topper tester, I know that the right bed topper can transform your sleep set-up. Luckily, there are plenty of high-quality mattress toppers on sale ahead of the 4th of July, so giving your mattress a reboot just got cheaper. One standout deal gives you the chance toget 40% off the Tempur-Adapt Topper at Tempur-Pedic, with a queen now $251.40 down from $419. 

Tempur-Pedic isn't the only brand behind some of this year's best mattresses to offer great savings on their bed toppers. Bed-in-a-box brand Casper has also knocked 10% off its Comfy topper, while ViscoSoft is slashing all their toppers by 25%. 

Here, I've rounded up the top five mattress toppers to buy in the 4th of July mattress sales. Each offer to boost the comfort of your mattress, plus they all appear in a our best mattress topper guide. 

1. Tempur-Pedic Tempur-Adapt Mattress Topper: was from $319now from $191 at Tempur-Pedic

1. Tempur-Pedic Tempur-Adapt Mattress Topper: was from $319 now from $191 at Tempur-Pedic
 Our Tempur-Pedic Tempur-Adapt Topper review loved this topper for providing the plush comfort of a Tempur-Pedic bed for a fraction of the price. A queen-size has now been reduced to $251.40, and this 40% off Tempur-Pedic mattress deal is one that doesn't come around often, so we suggest taking advantage while you can.  

2. Casper Comfy Mattress Topper: was from $199now from$179.10 at Casper

2. Casper Comfy Mattress Topper: was from $199 now from $179.10 at Casper
Our Casper Comfy Mattress Topper review deemed this to be one of the best bed toppers for side sleepers thanks to its cloud-like comfort and excellent temperature regulation. There's currently 10% off Casper mattress deal on this topper, which disappeared for a while but now has returned. This brings a queen down to $269.10. The topper comes with a 5-year warranty, free shipping, and a 30-night sleep trial. 

3. ViscoSoft Active Cooling Mattress Topper:was from $269.95now from $199.95 at ViscoSoft

3. ViscoSoft Active Cooling Mattress Topper: was from $269.95 now from $199.95 at ViscoSoft
Our Viscosoft Active Cooling Mattress Topper review found this to not only be the best topper for hot sleepers but also the best mattress topper for adding firm support to a too-soft bed. Right now, there's a lower MSRP and a 25% off discount, so you can get a queen-size ViscoSoft Active Cooling Mattress Topper for $299.95 (was $399.95). 

4.Puffy Deluxe Mattress Topper: was from $179 now  from $152 at Puffy

4.Puffy Deluxe Mattress Topper: was from $179 now  from $152 at Puffy
Our Puffy Deluxe Mattress Topper review ranks this bed topper as the best memory foam mattress topper. The Puffy Deluxe Mattress Topper is a mid-range, 2.5-inch thick mattress topper that’s available in two comfort levels (firm or soft).  Regular sales bring the queen size down to $195, and you can enjoy a 101-night trial and lifetime warranty.

5. Viscosoft Serene Hybrid Mattress Topper: was from $199.95 now from$149.95 at Viscosoft

5. Viscosoft Serene Hybrid Mattress Topper: was from $199.95 now from $149.95 at Viscosoft
Our Viscosoft Serene Hybrid Mattress Topper review found this to be the best topper for adding cushioned support, especially if you sleep on you back or side. Though not a budget option, it's now 25% off, with a queen down to $199.95.

Do mattress toppers work?

Some people wonder if mattress toppers actually work. After all, shouldn't a mattress alone be enough for a comfortable sleep? However, mattress toppers can be great for fixing any issues that are affecting an otherwise good, supportive mattress. 

That said, there are some mattress toppers that can be a waste of money and can even exacerbate any problems you're having. For example, some mattress toppers are too thin to make any impact, while others are too tall to be supportive. If you want to know whether a mattress topper will actually work, look for one that is firm or soft enough for your sleep style and between two and four inches tall. 

Frances Daniels
Senior Sleep Staff Writer

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. 

Read more
Mattress topper deals
Best mattress topper deals for January 2025: Up to 40% off ahead of Presidents' Day
best mattress topper: Casper Comfy Mattress Topper, featuring a woman resting on her back enjoying said topper on her bed
The best memory foam mattress topper in 2025: tested by sleep experts
The Tempur-Pedic Tempur-Adapt Topper + cooling with sale label
I'm a bed tester with back pain — 3 mattress topper deals I'd actually buy this Presidents' Day
The Helix GlacioTex Premium Mattress Topper with a deals badge
Saatva's mattress toppers are never on sale — 3 Presidents' Day deals I'd shop instead this weekend
One of the best cheap mattress toppers, the Linenspa Memory Foam Mattress Topper on a bed
The best cheap mattress toppers under $50 in 2025
Brooklyn Bedding 3" Latex Mattress Topper
I'm a mattress topper expert — here's everything I've learned about how to choose the right one
Latest in Mattress Toppers
A cute, fluffy cat naps on the ViscoSoft Hybrid Lux Topper with an Amazon deals badge in the corner
My favorite mattress toppers are up to 62% off in Amazon's Big Spring Sale — 3 deals I'd buy
A hand feels the temperature regulation of the SPRINGSPIRIT Dual Layer Mattress Topper.
What is a bamboo mattress topper and should you buy one?
The Sleepyhead Cooling Copper Topper on top of a bed in a bright, clean dorm room.
I've been sleeping on the Sleepyhead Mattress Topper for 3 weeks — and now I get the hype
A woman's hands placing a clean mattress pad on top of a mattress
5 signs that a bed topper is actually a mattress pad — and why that’s a problem
Helix ErgoAlign mattress topper on top of black mattress on wooden bedframe in bedroom with plant, gold bedside lamps and grey rug
Helix launch two new mattress toppers for advanced cooling and back pain relief
The new Helix Dual Comfort Mattress Topper in a bedroom
Helix launches anti-sleep divorce cooling mattress topper for couples with different sleep needs
Latest in Deals
Two models shown in rain jackets from Columbia and The North Face against a green and blue background with an Amazon Spring Sale badge in between them
7 Amazon Spring Sale outerwear deals I’d buy right now from Carhartt, Columbia, The North Face and more
Amazon Sneaker Deals
Epic Amazon running shoe sale from Asics, Brooks, Adidas and more — 19 deals I’d shop now from $39
Acer Predator X27U gaming monitor with killer deal tag superimposed
Now's your chance to snag a 1440p OLED gaming monitor for half off at Amazon
Sony Bravia 7 TV shown in living room
Save $800 on Sony’s sensational Mini-LED TV during Amazon’s Big Spring Sale
Samsung QN90D with deals tag
Surprise! Amazon just knocked $500 off this 50-inch Samsung Mini-LED TV
Amazon shopping cart
Amazon Big Spring Sale deals under $25 — 21 sales I’m shopping on Fire TV Sticks, Stanley, Lego and more