How To Set Up 2nd Sleep Number App

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I love adjustable air beds because my wife and I can pick the right firmness for our distinct needs.

I've tested over 30 mattresses, and the Sleep Number 360 i8 Smart Bed is my favorite.

Featuring automatic air adjustments and sleep tracking, it facilitates long-term, restful sleep.

As a mattress reviewer, I don't get to sleep on the same bed every night. But if I could stick with one bed, I would choose the Sleep Number 360 i8 Smart Bed.

Sleep Number is the top name in adjustable air mattresses thanks to its high-end service and innovation. This is evident in the 360 i8 mattress.

All Sleep Number beds have 20 mattress firmness options. The 360 i8 innovates on this with the sleep-tracking SleepIQ app and responsive air that adjusts the firmness for consistent comfort as you shift in the night. This feature might sound gimmicky, but it actually helps me stay asleep.

These are the Sleep Number 360 i8 Smart Bed specs at a glance:

Setup

In-home setup by the Sleep Number delivery crew is included with the purchase of the mattress. I like that they don't rely on third parties for this service because you know you're getting people who know what they're doing.

This proved true when the delivery people couldn't get the queen bed frame up my tight staircase. They recommended going with a split king frame, which comes in two pieces. This pushed the delivery date back a month.

The second try was successful. The workers set up the base and mattress in about 45 minutes, including ensuring my phone was paired with the bed and showing me how to use the app. Despite the brutal task of carrying the components up to my third-floor bedroom, they were professional and helpful.

Though the bed had a stronger than usual new bed smell, the odor dissipated by bedtime.

Review of the Sleep Number 360 i8 Smart Bed

I'm a side sleeper but will spend time in every sleeping position. Using the SleepIQ app (available for iOS and Android), you can turn on the "responsive air" function, which automatically adjusts the firmness as you change positions. This gives you consistent comfort and pressure relief. It worked seamlessly and did a good job of facilitating restful, undisturbed sleep.

The Sleep Number 360 i8 Smart Bed uses ballistocardiography, a measure of ballistic forces coming from your heart, to calculate your quality of sleep and provide a sleep score. After you track your sleep for several weeks and input your sleep goals, the app offers tips for more productive sleep.

In the six months my wife and I tested the bed, Sleep Number has made several tweaks to the app that have improved the sleep-tracking accuracy. I checked for accuracy by comparing the data to my Garmin Forerunner 945 smartwatch readings and my subjective experience.

Sleep Number is best known for its adjustable firmness. The mattress has 20 firmness levels. Your "sleep number" is your preferred firmness level from 5 (softest) to 100 (firmest). My sleep number was 35, but my wife preferred 55. Fortunately, the two sides are individually adjustable so couples with vastly different preferences can be comfortable.

Finding the right firmness was easy. Sleep Number recommends lying in your preferred sleep position and starting at 100. Then, slowly decrease the firmness using the SleepIQ app until you're comfortable. It took me a few nights of trial and error to find my sweet spot, but I didn't make additional adjustments after that.

I was impressed with the edge support of the mattress. I felt comfortable sitting on the side of the bed to put my socks and shoes on and when I laid on the edge to cuddle my wife in the morning.

I love how few wires the 360 i8 smart bed has. The adjustable base (I tested the FlexFit 2) and mattress are powered by one electrical cord that plugs into your wall. This is in stark contrast to the other adjustable beds I've tested, which have several wires that hang down onto the floor and require several wall outlets.

I also appreciated that I didn't need a remote to operate the mattress. The app controls everything. When I made adjustments, it was whisper-quiet.

Cons to consider

The motion isolation of the Sleep Number 360 i8 was subpar. When I flopped down on the mattress, my wife said it felt like a waterbed.

The heat dissipation was also poor. When I got up to go to the bathroom in the night, the spot where I was sleeping would still be quite warm when I got back. Hot sleepers may want to consider another option.

My wife mainly sleeps on this bed alone as I test mattresses on the other side of our "bedsroom." She likes to sprawl out. The problem is it's easy to feel the divider between the two air chambers. This makes sleeping in the middle of the bed uncomfortable. Also, the sleep tracker cannot recognize when one person is sprawling out across both sides of the bed. Consequently, her sleep stats are inaccurate when she does this. For these reasons, I would not recommend Sleep Number beds for people who sleep alone.

The mattress is also hard to move since it is attached to the base. You can try to detach it and move it separately or attempt to move the whole unit. Either way, it's a chore.

Should you buy it?

At $3,700 for the queen, the Sleep Number 360 i8 is out of the price range of most consumers, even if it does come with a basic foundation and white-glove delivery. But I think it is worth it if you can afford it, especially considering it's covered by a 15-year warranty. Sleep Number also offers financing options starting at $49 per month.

Your mattress preferences change over time. For example, two years ago, I was 50 pounds heavier and preferred a firmer mattress. Now, I look for something softer to keep my spine aligned as I sink in less. If this happens and you have a non-adjustable mattress, you either need a new mattress or have to live with being uncomfortable. With a Sleep Number adjustable bed, you simply choose a new firmness.

I would especially recommend the Sleep Number to older couples since comfort preferences tend to be more refined as you age.

The bottom line

If I weren't a mattress tester trying out new beds every two weeks, I would sleep on the Sleep Number 360 i8 Smart Bed every night. Even though I sleep hot and the Sleep Number tends to retain heat, I'd still prefer it because of the responsive air feature that keeps my comfort consistent no matter what position I'm in. As a stats person, I like as much sleep tracking info as I can get to try to achieve a better, more restful sleep. If you can afford it, I strongly recommend the Sleep Number 360 i8 Smart Bed.

Pros: Responsive air adjustments provide consistent comfort and support, built-in sleep tracker with sleep tips, good edge support, white-glove delivery included with purchase, 20 firmness options independently adjustable on each side, great for couples

Cons: Retains heat, poor motion dampening, hard to move, not ideal for people who sleep alone

James Brains

Home & Kitchen Reporter, Insider Reviews

James is a Home & Kitchen Reporter for Insider Reviews, where he specializes in sleep, HVAC, and kitchen appliances. He has tested more than 30 mattresses from startups like Casper and legacy brands like Tempur-Pedic, using his background in experimental psychology to develop objective tests and evaluate comfort, support, motion transfer, and more. He authors our guide to the best mattresses. In addition to being Insider Reviews' mattress expert, James has extensively covered robot vacuums, air conditioners, air purifiers, and more within the HVAC space. He's tested more than 20 robot vacs from brands like iRobot and Roborock over the years and is no stranger to keeping his house at a chilly 60 degrees Fahrenheit for weeks on end all in the name of testing air conditioners. He's a multifaceted writer who has covered everything from health and fitness to consumer technology. His mission is to help people get the most value for their money by guiding them in making informed buying decisions. James is currently based in Lansing, Michigan, where he lives in "The Barn Mansion," a three-story Dutch colonial home, with his wife, two sons, two cats, and a rambunctious rat terrier. When James isn't testing products and writing for Insider, he's helping to run a popular local Facebook group, Lansing Foodies. See below for some of his work: The best mattress for every type of sleeper in 2021, according to our rigorous testing The 6 best robot vacuums we tested in 2021 The 6 best air conditioners we tested in 2021 The best Instant Pots and electric pressure cookers we tested in 2021 10 grilling essentials that chefs and pitmasters swear by for making the best BBQ The 5 best mattress toppers we tested in 2021 Contact info: jbrains@insider.com Learn more about how our team of experts tests and reviews products at Insider here. Learn more about how we test kitchen products.