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Sleep Number 360 i8 Smart Bed Review

By November 29, 2021June 10th, 2024No Comments

Sleep Number i8 Smart Bed Review

Sleep Number 360 i8 Bed
  • Comfort
  • Back Support
  • Edge Support
  • Affordability
  • Cooling
  • Trial & Warranty
  • Customer Service


If you’re willing to make the investment, the Sleep Number 360 i8 Smart Bed might be the best mattress for body pain, snoring, recovery and the great debate between couples of which bed to buy. It’s a bed that’s sure to impress your friends at the very least, with modern capabilities unlike any other mattress.

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Sleep Number 360 i8 Smart Bed Review

Have you ever wanted a bed that could intuitively sense your movements and adjust to them accordingly? What about a bed that could be soft on one side and firm on the other? If you’ve ever wanted a future forward bed that uses innovative technology, you might be in the right place. Couples who can’t agree on a mattress may want to read on to see if a Sleep Number i8 adjustable airbed is right for them.

Product Details

Mattress Materials Icon
Adjustable Air, Foam
Mattress Sleep Trial Icon
Trial Period
100 nights
Mattress Shipping Icon
Shipping Method
Mattress Firmness Icon
Medium, Customizable
Mattress Warranty Icon
Mattress Price Icon
Price Range

Our Recommendation

Reviewer Rating Highlights For The Sleep Number 360 i8 Smart Bed

Sleep Number took the bed market by storm by presenting a customizable smart bed with adjustable firmness that even the pickiest couples could agree on. With separate air chambers on both sides of larger models, arguments over the firmness of a mattress are virtually over. Sleepers of all kinds can enjoy a luxury airbed that uses technology to get to know you and support your sleep habits, evolving and changing with you as you need it to.

Recommended for the following sleeper types:

Best Mattress For:

  • Couples
  • Those suffering from pressure point pain
  • Sleep nerds interested in tracking their habits

Not Recommended For:

  • Solo sleepers or bed hogs
  • Those with a heart condition
  • Sleepers on a budget

A Closer Look at Sleep Number i8 Materials

This particular model in Sleep Number’s Innovative line of smart beds comes with a remote, hose, pump, and an app that tracks your sleep habits through your smartphone. The i8 Smart Bed itself is made up of a blend of polyester/polypropylene fabrics, so it’s soft and breathable. Sleep Number works with CertiPUR-US to ensure their foam is environmentally safe. As far as construction goes, it’s got a little bit of everything:

  1. Mattress Top: quilted plush, the stretchy cover is cool to the touch using outlast technology.
  2. Comfort Layer: 6” of proprietary gel infused foam to provide better temperature control.
  3. Air Chamber(s): all large models will have two air chambers that adjust independently using the sleep number function.


One of the biggest appeals of the Sleep Number i8 model is the adjustable firmness. By default, the mattress arrives at a medium firmness, around a 6 on a scale of 10, 10 being the most firm. Sleep Number uses a comfort scale from 1-100, but the average Sleep Number owner ranges from 30-60 in firmness.

I would feel like absolute mush on the foam, while 100 would be like sleeping on a balloon rock. The higher the number, the more the air chambers fill, increasing the firmness of the bed. With the added comfort layer of gel infused foam, just about anyone can find their sleep number, and change it whenever they need to with the push of a button.

Sleep Number Bed i8 - Air Bed Layered View

Mattress Sizes and Prices

(price doesn’t include discount or sale items)

SizeDimensionsRegular Price
Twin Long38" x 80"$3,349
Full54” x 75”$3,624
Queen60" x 80"$3,799
King76" x 80"$4,499
Split KingTwo 38" x 80" pieces$5,299
FlexTop King76" x 80"$5,299
California King72" x 84"$4,499
Split California KingTwo 36" x 84" pieces$5,299
FlexTop California King72" x 84"$5,299

Pros and Cons

Who is the Sleep Number 360 i8 Smart Bed best for?

The Sleep Number mattress is ideal for older couples with different needs willing to invest in a luxury bed. Best with an adjustable frame, the i8 can sense snoring and take action to prevent it. Exhausted sleepers who have tried other options and still struggle with poor sleep may want to look into the smart bed i8 to track their habits and find the perfect variables for relief. Those in a long term physical recovery process would also benefit the most from an adjustable smart bed that will cradle their body to encourage healing.

How is it for sex?

Since there are likely to be two differing levels of firmness, couples may still have to choose a number to create a more intimacy friendly environment. Some reviews say that the seam between the two air chambers is a little too obvious and uncomfortable. If you’re a cuddly couple that likes to snuggle in the middle a lot, this might not be the right bed for you.

How is the motion isolation?

Since this isn’t 100% memory foam bed, the motion isolation has room for improvement. Flopping down on a sleep number i8 can often have a “water bed effect”, and so disturbances are more likely with the i8 than other mattress designed with motion isolation in mind.

What’s The Catch?

The Sleep Number i8 smart bed requires a good WIFI connection to work with the sensors in the bed and the app on your smartphone. Often times the technology is not 100% accurate, and may miss out on some of your movements.

If you have a heart condition, the EMF’s of the i8’s technology (magnetic sensors) may elicit an unpleasant feeling, so keep this in mind for you or whoever you’re sharing the mattress with.

The warranty and what it covers can be tricky, so be sure and read the fine print. Lastly, if you and your partner have drastically different sleep numbers, it may affect the middle of the mattress over time, creating a “trench effect” that pulls the sleeper into the middle.

The Best Sleep Number 360 i8 Smart Bed Reviews

Those who are happy with the Sleep Number i8 smart bed adore the way it cradles them and adjusts to their needs. Like sleeping on a cloud, the innovative technology makes pain and snoring a thing of the past, adjusting to your movements and patterns to create the perfect conditions for deep rest. Happy owners of the i8 love tracking their SleepIQ (a number that tells you how well you slept) and pinpointing how to improve their sleep overall.

The Worst Sleep Number 360 i8 Smart Bed Reviews

Complaints about the sleep number i8 smart bed include: poor motion isolation, poor temperature control, faulty firmware, molding in the hose, and trenching in the middle. This is a mattress with a ton of bells, whistles and add-ons that some say aren’t always worth the money. Long term owners may find themselves shelling out more money to replace faulty parts. At worst, this bed is described as “a glorified air mattress” that is both costly to buy and return, assuming the customer service didn’t give them the run around using their tricky warranty.

Sleep Number Mattress Warranty

Sleep Number offers a 1 year full warranty followed by a 15 year limited warranty, and covers defects in material or craftsmanship despite normal use. Their current warranty extends to all Sleep Number smart beds and bases purchased after March 28, 2020. During the first year, Sleep Number offers to repair, replace or refund your warrantied product or part if there is a defect in materials or craftsmanship despite normal use and service at no cost. After that, any repair or replacement cost is prorated and only partially covered. Be sure to go over all their terms and conditions before you make a purchase, and keep all receipts and records in a safe place you can easily access. Sleep Number’s warranty is very specific, so it’s important to know what you’re getting into.

What Sleep Number Warranty Covers

Sleep Number advertises a 15 year limited warranty with their 100 night trial period, available in the United States exclusively. It is far easier to return within the trial period, but be sure Sleep Number authorizes it first. The warranty covers an ownership transfer within the 1 year period, but the SleepIQ technology doesn’t transfer, likely to discourage any handoffs at all. The full warranty only applies to the original owner, and you’ll be asked for verification details upon making a claim. There is a law label attached to all Smart Beds that you should not remove, as this may void your warranty altogether.

What Sleep Number Warranty Doesn’t Cover

If you’re planning on making a claim with Sleep Number, keep in mind they don’t cover return shipping/delivery fees, and must authorize the return to begin with. The warranty doesn’t cover physical abuse or damage caused by tampering or modification to any component, nor does it cover environmental damage. The smart bed remote control, if purchased, is covered by a separate warranty, and the warranty doesn’t apply to the app technology at all. If you’ve purchased a Sleep Number bed for commercial use, only the 1 year warranty applies. If you’re caught using an inappropriate base or foundation, Sleep Number reserves the right to void your warranty completely.

Sleep Examiner’s Review Process

Here at Sleep Examiner, we consider ourselves expert reviewers of all things sleep. However, we believe that ten opinions are better than one, so we take on the task of opening twenty different browser tabs and digging deep so you don’t have to. We painstakingly comb through reviews on multiple sites for every mattress, pillow, and sleep accessory we can find – so you don’t get fooled by fake, biased, or limited points of view.

Using a combination of verified customer reviews, we put together in-depth research on the exact composition and materials used, as well as comparisons and ratings from expert sites. Once our research is concluded, our system automatically generates an overall performance score for each mattress based on the collected data in the following categories: Comfort, Firmness, Edge Support, Affordability, Cooling, Trial Period, Warranty and Customer Support.

Our Analysis

Sleep Number 360 i8 Smart Bed Summary Analysis

Started in 1987 under the Select Comfort Corporation, the first Sleep Number bed was produced in 1988. They’ve come far since their original comfort settings that were only from 1-10. Sleep Number beds are made in the USA and can be found in their respective stores across the country. The company has been hit rather hard during the pandemic, furloughing nearly 2,000 workers in 2020, closing locations and discontinuing buybacks as well as deliveries in many cases.

Sleep Number i8 Mattress Performance Score

Comfort: 4.8/5
Back Support: 4/5
Edge Support: 3.5/5
Affordability: 3/5
Cooling: 4.2/5
Trial & Warranty: 3/5
Customer Service: 3.8/5

The Verdict: 3.8/5

If you’re willing to make the investment, the Sleep Number 360 i8 Smart Bed might be the best mattress for body pain, snoring, recovery and the great debate between couples of which bed to buy. It’s a bed that’s sure to impress your friends at the very least, with modern capabilities unlike any other mattress. However, based on the warning signs, this bed could be more trouble than it’s worth, so we recommend proceeding with caution.



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