Amazon slashes prices on the most top-rated sleep trackers I've tested

A collage of Tom's Guide sleep tech reviewer wearing sleep trackers including the Oura Ring 4 (top left), the Whoop MG (top right), placing the Withings Sleep Analyser under mattress (bottom left), the Fitbit Versa 4 on woman's wrist (bottom right). — (Image credit: Future)

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Amazon Prime Day is a great time to shop tech. While not all gadgets are good news for sleep (your smartphone could be what's robbing you of quality ZZZs), wearable tech from trusted brands certainly has a place in the bedroom.

Right now, you can save 48% on the Oura Ring 4 at Amazon and take 33% off the Fitbit Versa 4 at Amazon. These devices can help you learn more about your sleep habits and supercharge your rest this summer.

I've spent the past two years on the hunt for the best sleep trackers on the market, putting various watches, rings, armbands, and mats through our sleep tracker testing methodology, and recording their sale prices along the way.

That means a) I know what design elements, software, and sensors make a good sleep tracker, and b) I can spot a worthy deal when I see one. So, here I'm zoning in on the best tracker deals in current Amazon Prime Day sleep sales on both sides of the Atlantic right now.

Don't forget your Prime Membership...

Top 4 sleep tracker US Prime Day deals

From 48% off the world's top-rated smart ring (need we mention, it's the Oura Ring) to $38 savings on an up-and-coming, contact-free sleep monitor, here are the deals I recommend checking out if you're in America...

Fitbit can be described as the OG of sleep tracking and the brand remains the place to go if you want a health tracker for great value. The Fitbit Versa 4 Smartwatch has plenty of features geared towards sleep including sleep stage data, a smart alarm, do not disturb mode, and a monthly sleep profile that helps you understand your sleep tendencies. This Prime Day, Amazon are knocking a generous 33% off bringing the price of this well-rounded sleep and activity tracker down to $134.95 from $199.95.

Our Fitbit Versa 4 review score: ★★★
User score: ★★★★½ (6,600+ reviews)

The Whoop 5.0/MG is our recommended sleep tracker for athletes looking to get a handle on and boost their recovery between training sessions. It's loaded with important fitness metrics from VO2 max readings to HRV status, blood oxygen levels, and sleep efficiency scores, alongside delivering ECG readings and overnight skin temperature. At Whoop, instead of paying for the hardware, you pay an annual subscription fee to use the device. The most advanced payment plan is on sale this Prime Day, with the annual fee down to $299 from $359; expect to pay $199 for the entry-level subscription.

Our Whoop 5.0/MG score: ★★★★
User score: ★★★★½ (3,600+ reviews)

Top 4 sleep tracker UK Prime Day deals

For UK folk, the best Prime Day deals feature Oura (shock), Fitbit and Withings. Read on for all the deets...

This is a deal you don't want to miss. We rarely see money off at Withings and the current Prime Day deal knocks the Sleep Analyser to nigh on its lowest-ever price at £76.50 from £129.95 (£74.96 is the price to beat, so there's hardly anything in it). In short, if you want a discreet tracker that needn't be in contact with your body overnight, or clutter up your bedside, the Withings Sleep Analyser is a great pick.

Our Withings Sleep Analyser review score: ★★★★
User score: ★★★★ (2,300+ reviews)

Honestly, the wearable deals are popping off this Prime Day. The already great value Fitbit Inspire 3, which I tend to recommend to people looking for a basic, entry-level sleep tracker, is 33% off bringing the price to just $56.99 from $84.99. That doesn't mean it falls short in reliability, our reviewer says it accurately predicted the time she fell asleep and woke up at night, differentiating sleep time from laying in bed on her phone.

Our Fitbit Inspire 3 review score: ★★★★½
User score: ★★★★½ (11,000+ reviews)

Here's a deal to give a whoop about: 17% off the Peak annual plan at Whoop. That cuts the cost of Whoop's mid-level subscription to £189 from £229. For the serious athletes among us, the Whoop 5.0/MG screen-less wristband is the most in depth, scientifically-backed sleep and recovery tracker you can buy. It may be a commercial device, but it's worn by elite athletes from Christiano Ronaldo to the Ferrari Formula One team who value the personalised sleep, strain, and recovery insights it delivers.

Our Whoop 5.0/MG score: ★★★★
User score: ★★★★½ (3,600+ reviews)

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Eve is a sleep tech product tester and writer at Tom's Guide, covering everything from smart beds and sleep trackers, to sleep earbuds and sunrise alarm clocks. Eve is a PPA-accredited journalist with an MA in Magazine Journalism, and has four years’ experience writing features and news. In her role as Sleep Tech Product Tester and Writer for Tom's Guide, Eve is constantly trying out and reviewing the latest sleep products from brands such as Apple, Garmin, Whoop, Hatch, Sleep Number, Eight Sleep, and Oura. A fitness enthusiast who completed the London Marathon earlier this year, Eve loves exploring the relationship between good sleep, overall health, and physical performance, and how great sleep tech can make that relationship even better.