Written by Olivera Jancikin, Content Writer
If you're in the market for a new bed, you may have come across the names Tempur-Pedic and Sleep Number during your search. The manufacturers of these beds are well-known for providing high-quality products, making them a popular choice for many shoppers. For this comparison, the Sleep Advisor team tested the Tempur-Pedic TEMPUR-LuxeAdapt® Soft (it’s also available in firm) and the Sleep Number 360® c4. These models have some similar characteristics and are unique in others. In this article, we will break down both of these products and try to provide you with the information you need to make an informed buying decision.
Product
Firmness
Trial Period
Product
Sleep Number 360 c4 Smart MattressFirmness
Multiple firmness optionsTrial Period
100 nightsWho I’d Recommend the Tempur-Pedic TEMPUR-LuxeAdapt® For
- People who need pressure relief – Our team appreciates how the incredibly plush TEMPUR-LuxeAdapt® offers fantastic pressure relief thanks to its slow-moving memory foam that was originally developed by NASA scientists to cushion astronauts on takeoff.
- Light to average-weight side sleepers – The softness of this bed limits its audience, but we think light to average-weight sleepers will appreciate the plush feel on their joints.
- Luxury shoppers – We appreciate that the Tempur-Pedic beds feature premium materials, workmanship and technology, but recognize that this comes at a price. This bed can cost up to 4,699 dollars more than the same size in the Sleep Number.
Who I’d Recommend the Sleep Number 360® c4 For
- Tech fans – The Sleep Number offers manual and automatically adjustable firmness, as well as sleep tracking technology, via its SleepIQ® app. Our team members were fans of the pressure sensors in the mattress that measure breathing rate, heart rate and movement to assess the quality of your sleep.
- Back and stomach sleepers – Despite its adjustable firmness, this bed isn’t likely to feel plush due to its thin comfort layer. We think it's best suited to back and stomach sleepers, who may appreciate the level of support. However, heavyweight sleepers may find it’s not cushioned enough.
- Shoppers requiring edge support – The c4 offers much sturdier edges than the soft TEMPUR-LuxeAdapt®, so it is better suited to those who need stability when sitting on the edge of the bed, or couples who like to spread out.
TEMPUR-LuxeAdapt Mattress
A luxurious and soft memory foam mattress that offers exceptional pressure relief for light to average-weight side sleepers
Read Full Review
$300 instant gift with qualifying mattress set purchase
Material
Foam
Trial Period
90 nights
Shipping Method
Free shipping
Firmness
Soft: 5/10
Warranty
10-year warranty
Price Range
$$$$$$
We recommend this mattress for the following sleeper types:
Joint Pain
This bed is perfect for anyone suffering from joint pain.
Hip Pain
This bed is perfect for anyone suffering from hip pain.
Back Pain
This bed is perfect for anyone suffering from back pain.Financing Options
Financing options are available for this mattress.
TEMPUR-LuxeAdapt Mattress
A luxurious and soft memory foam mattress that offers exceptional pressure relief for light to average-weight side sleepers
Read Full Review
Material
Foam
Warranty
10-year warranty
Firmness
Soft: 5/10
Shipping Method
Free shipping
Trial Period
90 nights
Price Range
$$$$$$
We recommend this mattress for the following sleeper types:
Joint Pain
This bed is perfect for anyone suffering from joint pain.
Hip Pain
This bed is perfect for anyone suffering from hip pain.
Back Pain
This bed is perfect for anyone suffering from back pain.Financing Options
Financing options are available for this mattress.
TEMPUR-LuxeAdapt Mattress
A luxurious and soft memory foam mattress that offers exceptional pressure relief for light to average-weight side sleepers
Read Full Review
Material
Foam
Firmness
Soft: 5/10
Trial Period
90 nights
Warranty
10-year warranty
Shipping Method
Free shipping
Price Range
$$$$$$
We recommend this mattress for the following sleeper types:
Joint Pain
This bed is perfect for anyone suffering from joint pain.
Hip Pain
This bed is perfect for anyone suffering from hip pain.
Back Pain
This bed is perfect for anyone suffering from back pain.Financing Options
Financing options are available for this mattress.
Sleep Number 360 c4 Smart Mattress
One of the more affordable Sleep Number smart beds, the c4 offers sleep tracking, adjustable firmness, and good support.
Read Full Review
Material
Trial Period
100 nights
Shipping Method
Flat-rate white glove delivery
Firmness
Multiple firmness options
Warranty
15-year limited warranty
Price Range
$$$$$
Sleep Number 360 c4 Smart Mattress
One of the more affordable Sleep Number smart beds, the c4 offers sleep tracking, adjustable firmness, and good support.
Read Full Review
Material
Warranty
15-year limited warranty
Firmness
Multiple firmness options
Shipping Method
Flat-rate white glove delivery
Trial Period
100 nights
Price Range
$$$$$
Sleep Number 360 c4 Smart Mattress
One of the more affordable Sleep Number smart beds, the c4 offers sleep tracking, adjustable firmness, and good support.
Read Full Review
Material
Firmness
Multiple firmness options
Trial Period
100 nights
Warranty
15-year limited warranty
Shipping Method
Flat-rate white glove delivery
Price Range
$$$$$
Comparing Tempur-Pedic TEMPUR-LuxeAdapt® vs Sleep Number 360® c4: Top Similarities
- Available in split options – The TEMPUR-LuxeAdapt® and the c4 offer the option of Split King or Split Cali King, allowing you to customize firmness on each side of the bed. However, the Sleep Number split options are only sold with the brand’s adjustable bases.
- Trial period – Both beds offer industry-average trials of 90 nights and 100 nights for the TEMPUR-LuxeAdapt® and Sleep Number respectively.
- In-home setup – Professional delivery and set-up is available with both of these beds. This service is free with the TEMPUR-LuxeAdapt® but costs 249 dollars with the Sleep Number. Your old mattress will be taken away for free with the TEMPUR-LuxeAdapt®, and for 49 dollars with the Sleep Number.
Comparing Tempur-Pedic TEMPUR-LuxeAdapt® vs Sleep Number 360® c4: Key Differences
- Washable covers – While both mattress covers can be removed, only the TEMPUR-LuxeAdapt®’s can be machine-washed. The Sleep Number cover is spot-clean only.
- Firmness – The TEMPUR-LuxeAdapt® offers a soft feel. With a choice of 20 firmness options, the c4 can be customized to a variety of specifications. However, the c4’s air support system and thin comfort layer make it a bed on the firmer end of the scale, even on the plushest setting.
- Construction – The TEMPUR-LuxeAdapt® has a more traditional memory foam feel while the c4 offers a unique sleeping experience with its smart bed air support system. Our testers found that it took a while to get used to the feel of the c4.
Comparing Firmness, Support & Feel
Firmness
We rate firmness on a scale from 1 to 10, with one being the softest. Our team scored the TEMPUR-LuxeAdapt® Soft at 5 out of 10, making it medium-plush. The Sleep Number is more difficult to rate as it features a choice of 20 adjustable mattress firmness levels, called Sleep Numbers. However, the c4 is one of the brand’s firmest beds due to its thin comfort layer, so even on its softest setting, it shouldn’t feel too plush.
Support
The TEMPUR-LuxeAdapt® is a plush bed with deep sinkage, and while we think it could be ideal for lightweight back sleepers and light to average-weight side sleepers, we don’t think it offers enough spinal support for most people over 130 pounds.
The support offered by the c4 is a little more versatile, thanks to its adjustable air chambers, though our team found it was likely more suited to light to average-weight sleepers.
Feel
Place your hand on the TEMPUR-LuxeAdapt® and you’ll feel the cool-to-the-touch cover. Press down and you’ll experience the incredibly slow-moving TEMPUR® memory foam, which envelops you in a deep hug.
The c4 offers a totally different experience, with its relatively thin 3-inch comfort layer that provides some cushioning and pressure relief, without feeling too plush. While the c4’s cover is breathable, it doesn’t have that ‘cool to the touch’ feeling that the TEMPUR-LuxeAdapt®’s cover has.
Comparing Sinkage and Bounce
If you love deep sinkage, look no further than the TEMPUR-LuxeAdapt®, which provides incredible pressure relief thanks to its super soft TEMPUR-ES® memory foam layer. While we found the foam too plush for most sleepers over 130 pounds, lightweight back sleepers and light to average-weight side sleepers should find it has just the right amount of cushioning and support.
The c4 doesn’t provide much cushioning, although its three-zoned, gel-infused poly foam layer does offer some pressure relief. We found this bed best suited for light to average-weight sleepers who prefer to feel more on top of the bed. The c4 has an element of bounce, while the TEMPUR-LuxeAdapt® has zero bounce.
Comparing Motion Transfer
Motion isolation is an important consideration if you share a bed with a restless partner, pet, or child and are easily disturbed by their movements. A mattress with good motion isolation will ensure that any movement made on the other side of the bed stays there.
Our team found that the TEMPUR-LuxeAdapt® offered fantastic motion isolation, thanks to its incredibly slow-moving memory foam. While the c4’s motion isolation isn’t as good as the TEMPUR-LuxeAdapt®’s, we found it to be decent. The bed features two air chambers and this means that motion made on the other air chamber largely stays there.
Comparing Cooling
If you tend to sleep hot, a bed’s ability to keep you cool is an important feature. All-foam beds like the TEMPUR-LuxeAdapt® are notorious for trapping heat, and while this bed does feature heat-dissipating phase change material in its cool-to-the-touch cover, the deep sinkage doesn’t allow for much airflow around your body. We found this made the bed sleep rather hot.
The c4, on the other hand, is an air bed, and they are known for sleeping cool. The thin comfort layer featuring gel-infused foam also stops too much heat from being trapped, and the breathable cover allows for airflow. We found this bed to be temperature-neutral, so it should be a better pick for warmer sleepers.
Read more about cooling mattresses.
Comparing Construction (Materials & Quality)
Tempur-Pedic TEMPUR-LuxeAdapt® Construction
This 13-inch all-foam bed is available as a soft or firm model, though this review focuses on the Soft model. The mattress starts with a stretchy cover made from polyester and phase change material, which is designed to feel cool to the touch and help dissipate body heat. The TEMPUR-LuxeAdapt®’s cover is removable and machine-washable.
- The comfort layer features 3.5 inches of TEMPUR-ES® memory foam, which is the brand’s softest material. It’s incredibly slow-moving, offering plush contouring and pressure relief.
- The second layer is made up of just over an inch of TEMPUR-APR+™ foam, which is the brand’s most conforming and pressure-relieving material, offering 30 percent more conforming comfort than the original APR™ foam (used in the mid-range ProAdapt® model), thanks to its tighter cell structure.
- A transition layer of poly foam eases you down into the firmer support layer beneath.
- The base layer features high-density poly foam, providing durability for the rest of the bed.
Sleep Number 360® c4 Construction
This innovative 9-inch smart bed allows users to program their own firmness level from a choice of 20 settings, by inflating or deflating the air support system. The bed features two air chambers, allowing you to customize each side of the bed.
The mattress starts with a breathable polyester and polypropylene stretch-knit cover, which can be removed for spot-cleaning.
- The comfort layer begins with 1.5 inches of fiberfill material that’s quilted to the cover, providing soft cushioning. This is followed by a 1.5-inch layer of gel-infused poly foam that’s designed to offer pressure relief and contouring. This foam has three zones to provide additional support for the head, neck, back, and hips.
- The support layer features two 24-gauge vulcanized rubber air chambers, with cotton fabric exteriors. Each chamber has its own hose and pump to inflate or deflate it to your desired Sleep Number.
- A foam wall perimeter provides edge support.
Comparing Company Policies & Price
- Warranty – The TEMPUR-LuxeAdapt® comes with a 10-year limited warranty, while the Sleep Number has a 15-year limited warranty. However, be aware that Sleep Number’s warranty is a little complicated – full cost of repair will be covered in the first year and then the customer has to pay a percentage of the cost in the years following. This rises incrementally from 30 to 85 percent.
- Shipping – Free white glove delivery is provided with the TEMPUR-LuxeAdapt®, while Sleep Number charges 249 dollars for its mandatory premium home setup. An extra 49 dollars is charged for the removal of your old mattress.
Trial Period The TEMPUR-LuxeAdapt® has a 90-night trial period, while Sleep Number has a slightly longer trial of 100 nights. - Returns – You’ll receive a full refund for both beds (minus any shipping charges) if you choose to return them within the trial period, as long as you’ve slept on the bed for at least 30 nights. However, you’ll be responsible for return shipping fees for the Sleep Number, which can be arranged by the company for 249 dollars plus tax.
- Price – While neither bed would be considered a low-cost option, the Sleep Number 360® c4 is a better choice for those on a smaller budget, as it’s 2,200 to 4,699 dollars cheaper than the Tempur-Pedic TEMPUR-LuxeAdapt®, depending on the chosen size.
Tempur-Pedic TEMPUR-LuxeAdapt® vs. Sleep Number 360® c4 Compared Side-by-Side
| Features | Tempur-Pedic TEMPUR-LuxeAdapt® | Sleep Number 360® c4 |
|---|---|---|
| Height | 13 | 9” |
| Cover | Machine-washable, polyester and phase change fabric | Removable polyester and polypropylene stretch-knit cover |
| Materials | TEMPUR-ES® memory foam, TEMPUR-APR+™ foam and poly foam | Fiberfill, gel-infused poly foam, air support system |
| Cooling | Phase change material in the cover | Breathable cover, gel-infused foam, air support system |
| Firmness | 5/10 | 20 firmness options |
| Support | Good | Great |
| Motion Transfer | Minimal | Minimal |
| Edge Support | Minimal | Good |
| Sinkage | Deep Hug | Gentle Cradle |
| Bounce | No | Some |
| Warranty | 10 years | 15-year limited |
| Trial Period | 90 Nights | 100 Nights |
| Certifications | CertiPUR-US® Certified | CertiPUR-US® Certified |
| Adjustable Base Compatible | Yes | Yes |
| Shipping | Free white glove delivery to contiguous U.S., $600 shipping to Alaska, Hawaii and remote locations | Ships to select areas in the U.S. for mandatory white glove delivery of $24 |
| Made in the USA | Yes | Yes |
| Read Full Review | Tempur-Pedic TEMPUR-LuxeAdapt® Mattress Review | Sleep Number 360® c4 Mattress Review |
| Shop Now | Tempur-Pedic TEMPUR-LuxeAdapt® Mattress | Sleep Number 360® c4 Mattress |
Final Thoughts
Still can’t make up your mind? If you like the sound of traditional slow-moving memory foam, incredible pressure relief and a plush sleeping surface, the TEMPUR-LuxeAdapt® may be the one for you. However, be aware that sleepers over 130 pounds will likely find the firm option more supportive. Tech lovers who are keen on the sound of integrated sleep tracking, customizable firmness and a unique sleeping experience may be drawn to the Sleep Number 360® c4, which also suits a wider range of sleepers due to its adjustability.
Check out our full-length reviews if you need a little more help deciding.
Product
Firmness
Trial Period
Product
Sleep Number 360 c4 Smart MattressFirmness
Multiple firmness optionsTrial Period
100 nightsMore Tempur-Pedic Comparisons:
More Sleep Number Comparisons:
