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Sleep Number vs. Casper Mattress Comparison
Looking to update your sleep setup but can’t decide between the Sleep Number and Casper Mattresses? Then you have come to the right place! You’ll be able to make a well-informed decision about which mattress to buy by referencing this comparison of their key features. Find out more about it through our testing methodology.
Sleep Number vs. Casper Overview
Find out the differences between the Sleep Number and the Casper mattresses and make an informed decision about which one is right for you by reading on!
| Sleep Number is best for… | Casper is best for… |
| Combination sleepers | Back sleepers |
| Couples | Budget-conscious shoppers |
| Hot sleepers | Those experiencing low back pain |
Who Should Choose the Sleep Number Mattress?
- Combination sleepers: Perfect for side sleepers, stomach sleepers, and back sleepers alike, the Sleep Number’s responsive air function modifies the air pressure in the mattress to conform to your preferred sleeping posture.
- Couples: Sleep Number is the perfect mattress for couples since they can customize the size and level of firmness they want for the mattress upon purchase. The two separate air chambers in different sizes prevent motion transfer between sleep partners.
- Hot sleepers: Because air doesn’t trap heat the way foam does, those who tend to get hot sleep better on the Sleep Number.
Who Should Choose the Casper Mattress?
- Back sleepers: Casper’s comfort foam and zoned memory foam strike a nice mix between softness and support, making it ideal for those who spend most of their nights on their back.
- Budget-conscious shoppers: You may rest easy knowing that a Queen size Casper mattress won’t set you back more than $1,000, even if you’re on a tight budget.
- Those experiencing low back pain: The extra firmness and support beneath the hips of the Casper is excellent news for those who suffer from chronic lower back discomfort.
Sleep Number vs. Casper: Top Similarities
- Pressure Relief: Sleep Number and Casper provide lengthy guarantees on their mattresses.
- Durability: The pressure alleviation and support offered by these mattresses are superb. On average, they have a lifespan of nine to ten years.
- Motion Isolation: Sleep Number and Casper mattresses benefit from a unique structure that provides motion separation.
- Pricing: Although Sleep Number Mattress may have different pricing points in Alaska and Hawaii, both mattresses have the exact pricing for all sizes (Twin, Twin XL, Full, Queen, King, and Cal King).
Sleep Number vs. Casper: Top Differences
- Firmness: Casper scored 6/10, which is medium for firmness and only supports back and side sleepers. Sleep Number is suitable for any sleeping position due to its customizable firmness level.
- Edge Support: Less air causes Sleep Number to have sinkage, while Casper has foam layers which may be more supportive for sitting and lying down.
- Spine Alignment: Casper got an A- grade, while Sleep Number gets an A+ since it is more fluent and adjustable to your sleeping position due to its responsive air feature.
- Temperature: Sleep Number has a cooler temperature profile, while Casper leans more toward warmer sleep.
Sleep Number vs. Casper: Firmness & Feel Differences
The section below will discuss the differences between Sleep Number and Casper regarding firmness and feel.
What’s the Firmness Of the Sleep Number & Casper Mattresses?
Sleep Number excelled firmness for people of different body weights and scored 5/5 overall in any sleeping position. However, Casper differs in firmness, especially in different positions, since heavyweight body types may score below 3 for different sleeping positions. These differences may affect your sleep habits and welfare.
What Do the Sleep Number & Casper Mattresses Feel Like?
The Sleep Number bed’s Responsive Air function automatically adjusts the air pressure in the mattress to conform to your body’s unique shape and weight distribution while you sleep. It has a cool temperature for an airy cool-to-touch sensation. Meanwhile, Casper hugs your body since it is like a memory foam that allows you to sink into the mattress. It has a doughy sensation that leans more towards lightweight body types for a lifted sleeping effect.
What’s It Like to Sleep On the Sleep Number & Casper Mattresses?
Sleep Number is perfect for any body type. Its firmness can withstand different body weight levels in any sleeping position, which can be comforting and increase sleep quality. For Casper, it might take a few tosses and turn for side and stomach sleepers to get the right position and have a comfortable sleep. However, it is best for those experiencing back pain due to its doughy feel, making it highly comfortable for back sleepers.
The Sleep Number vs. Casper Mattresses By Body Type
Sleep Number Performance By Body Type & Sleeping Position:
| Body Type: | BACK SLEEPERS | STOMACH SLEEPERS | SIDE SLEEPERS |
| Lightweight (< 130 lbs): | 5 | 5 | 5 |
| Average-weight (130–230 lbs): | 5 | 5 | 5 |
| Heavyweight (> 230 lbs): | 5 | 5 | 5 |
Casper Performance By Body Type & Sleeping Position:
| Body Type: | BACK SLEEPERS | STOMACH SLEEPERS | SIDE SLEEPERS |
| Lightweight (< 130 lbs): | 5 | 4 | 4 |
| Average-weight (130–230 lbs): | 5 | 3 | 5 |
| Heavyweight (> 230 lbs): | 3 | 2 | 2 |
1 = Very poor, 2 = Not good, 3 = Fair, 4 = Good, 5 = Excellent
Average-Weight Sleepers (130–230 lbs)
If you are a back sleeper, you will feel best for both mattresses no matter what body type you have, especially for average-weight sleepers. In that case, combination sleepers will have the best sleep quality using Sleep Number since it is ideal for all body types. On the other hand, Casper works fair for stomach and side sleepers who have average weight body types and may have issues if you are beyond that since it is foamier. A foam material can have sinkage on the side, which can be a bit difficult for heavyweight sleepers to feel comfortable n when sleeping.
Heavyweight Sleepers (> 230 lbs)
Sleep Number has a more cooling temperature, and due to its Air Responsive Feature, heavy-weight combination sleepers will have the best sleep quality all day and night. It adjusts and aligns to any sleeping position. Casper may not work if you are a heavyweight stomach and side sleeper. Due to its body-hugging foam material, it will not give off a more sloped and sink sleep. Casper will perform well for those with lower back pain who need that doughy feel for a mattress since it is not too firm for a stiff sleep.
Lightweight Sleepers (< 130 lbs)
Lightweight back sleepers can get the best support from the best of both mattresses thanks to their top-notch motion isolation and pressure relief. These body types can get all the perks that Sleep Number and Casper can offer. Although Sleep Number can guarantee excellent support for all sleeping positions for this body type. Casper is also good at providing lightweight stomach and side sleepers at bay.
Differences In Mattress Construction
In this section, you will understand the different materials and layers Sleep Number and Casper have for an in-depth mattress review.
| Sleep Number Mattress Materials | Casper Mattress Materials |
| Polyester and Rayon | Recycled Polyester |
| Polyfoam | AirScape Foam |
| Vulcanized Air Chambers | Zoned Memory Foam |
| 10” | Base Foam |
| 11” |
Cover
Sleep Number provides a soft, stretchy yet durable feel for their covers from a Polyester and Rayon material. At the same time, Casper has a slightly silkier feel than cotton due to its recycled polyester cover material, which is also sustainable and eco-friendly.
Comfort Layers
To keep the heat away, Casper incorporated an AirScape foam comfort layer for a more light and airy feel and also has a transitional layer of zoned memory foam that has a conforming pressure relief for your hips and shoulder. Meanwhile, Sleep Number has a Polyfoam for the comfort layer, which is soft and is responsible for a more responsive foam feature, aligning and adjusting to any sleeping position.
Support Layers
Sleep Number has extensive vulcanized air chambers that conform to the user’s shape, distributing their weight evenly while maintaining a comfortable level of contact. On the other hand, Casper has a base foam for firm stability and support for sleeping.
Sleep Number vs. Casper Pricing
| Size | Sleep Number Prices | Casper Prices |
| Twin | $699.00 | $895.00 |
| Twin XL | $799.00 | $995.00 |
| Full | $899.00 | $1195.00 |
| Queen | $1099.00 | $1295.00 |
| King | $1599.00 | $1695.00 |
| California King | $1599.00 | $1695.00 |
For exclusive discounts on both beds see our Sleep Number mattress coupons and Casper mattress coupons.
Sleep Number vs. Casper Mattress Performance Ratings & Differences
To help you choose between Sleep Number and Casper, we’ve evaluated their hardness, feel, and relaxation.
Temperature
The Sleep Number mattress is excellent for people who sweat excessively at night because of heat because of the cooling technology integrated into its air chambers. Whereas Casper’s body-hugging foam creates a flat sleeping surface that keeps you from sinking in, leading to a more restful night’s sleep.
Motion Transfer
The Casper’s Zoned Memory Foam construction makes it ideal for those who suffer from back pain, as the mattress conforms to the shape of the sleeper’s body when lying on their back, reducing pressure points. Sleep Number’s Air Responsive Feature, on the other hand, is ideal for combination sleepers because it automatically adjusts the air pressure in the mattress to conform to your preferred sleeping position.
Edge Support
Although the memory foam in the Casper Mattress can contribute to sinkage, the Sleep Number and the Casper mattress perform better than average at preventing sinking than other mattresses.
Pressure Relief
Both beds are great for relieving pressure. However, the Sleep Number’s varying degrees of hardness are more conducive to pressure alleviation and spinal alignment for stomach sleepers.
If you sleep on your side, you’ll appreciate the exceptional pressure relief provided by Casper’s zoned memory foam fabric.
Pain Relief
Sleep Number is prominent for their Air Responsive Feature that guarantees the best sleep for people who toss and turn when sleeping. For the most part, it can adjust to any sleeping position, regardless of body type giving top-quality rest. On the flip side, Casper has a soft and silky fabric that glides in your body, relieving back pain stress which is good for back and stomach sleepers.
Durability
You can get the best mattresses from Sleep Number and Casper due to their top-notch quality materials with nine to ten years of product warranty.
Shipping, Returns, & Warranties
Sleep Number
Due to the in-home setup necessary for the Sleep Number 360 Smart Bed mattresses, a separate fee of $199 is charged in place of shipping costs. There is a 100-night trial period available on all Smart Bed mattresses. You must sleep on your new mattress for at least 30 days before you may return or exchange it. The 15-year limited warranty covers mattress flaws and air pump problems.
Casper
Casper has a removal fee for your old mattress, and installing your new one will cost you an additional $149. If you change your mind about keeping the item after the trial period, you may send it back at no cost and get a complete refund according to its 100-night trial period. As long as you are the first owner of the mattress, the 10-year warranty will protect you from any flaws in materials or workmanship.
More Sleep Number Mattresses
The Sleep Number 360 c2 is an air bed that adjusts to your preferred firmness level, so you can find the perfect firmness for your body type and sleeping position. It comes with a remote so that you can adjust the amount of air with just a click.
The Sleep Number 360 c2 is an air bed that adjusts to your preferred firmness level, so you can find the perfect firmness for your body type and sleeping position. It comes with a remote so that you can adjust the amount of air with just a click.
The Sleep Number 360 c2 is an air bed that adjusts to your preferred firmness level, so you can find the perfect firmness for your body type and sleeping position. It comes with a remote so that you can adjust the amount of air with just a click.
Sleep Number 360 c2 Smart Mattress
Read Full Review
Material
Other
Trial Period
100 nights
Shipping Method
Flat-rate white glove delivery
Firmness
Multiple firmness options
Warranty
25-year limited warranty
Price Range
$$$$$
Sleep Number 360 c2 Smart Mattress
Read Full Review
Material
Other
Warranty
25-year limited warranty
Firmness
Multiple firmness options
Shipping Method
Flat-rate white glove delivery
Trial Period
100 nights
Price Range
$$$$$
Sleep Number 360 c2 Smart Mattress
Read Full Review
Material
Other
Firmness
Multiple firmness options
Trial Period
100 nights
Warranty
25-year limited warranty
Shipping Method
Flat-rate white glove delivery
Price Range
$$$$$
The Innovation 360 Smart Bed i8 has a 6" comfort layer with two different types of foam for support and pressure relief. There is also a special material in the surface of the mattress that releases heat so the mattress keeps its cool.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress. The Innovation 360 Smart Bed i8 has a 6" comfort layer with two different types of foam for support and pressure relief. There is also a special material in the surface of the mattress that releases heat so the mattress keeps its cool.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress. The Innovation 360 Smart Bed i8 has a 6" comfort layer with two different types of foam for support and pressure relief. There is also a special material in the surface of the mattress that releases heat so the mattress keeps its cool.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress.
Sleep Number 360 i8 Smart Mattress
Read Full Review
Material
Other
Trial Period
100 nights
Shipping Method
Flat-rate white glove delivery
Firmness
Multiple firmness options
Warranty
15-year limited warranty
Price Range
$$$$$
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Hip Pain
This bed is perfect for anyone suffering from hip pain.
Side Sleeping
Ideal for average weight side sleepers.
Financing Options
Sleep Number 360 i8 Smart Mattress
Read Full Review
Material
Other
Warranty
15-year limited warranty
Firmness
Multiple firmness options
Shipping Method
Flat-rate white glove delivery
Trial Period
100 nights
Price Range
$$$$$
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Hip Pain
This bed is perfect for anyone suffering from hip pain.
Side Sleeping
Ideal for average weight side sleepers.
Financing Options
Sleep Number 360 i8 Smart Mattress
Read Full Review
Material
Other
Firmness
Multiple firmness options
Trial Period
100 nights
Warranty
15-year limited warranty
Shipping Method
Flat-rate white glove delivery
Price Range
$$$$$
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Hip Pain
This bed is perfect for anyone suffering from hip pain.
Side Sleeping
Ideal for average weight side sleepers.
Financing Options
The Sleep Number 360 m7 is the only Sleep Number model to feature a memory foam layer. The m7 memory foam comfort layer is 5" thick and offers both the contouring and pressure-relieving qualities that most sleepers expect to feel with memory foam.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress. The Sleep Number 360 m7 is the only Sleep Number model to feature a memory foam layer. The m7 memory foam comfort layer is 5" thick and offers both the contouring and pressure-relieving qualities that most sleepers expect to feel with memory foam.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress. The Sleep Number 360 m7 is the only Sleep Number model to feature a memory foam layer. The m7 memory foam comfort layer is 5" thick and offers both the contouring and pressure-relieving qualities that most sleepers expect to feel with memory foam.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress.
Sleep Number 360 m7 Smart Mattress
Read Full Review
Material
Foam
Trial Period
100 nights
Shipping Method
Flat-rate white glove delivery
Firmness
Multiple firmness options
Warranty
15-year limited warranty
Price Range
$$$$$
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Hip Pain
This bed is perfect for anyone suffering from hip pain.
Back Pain
This bed is perfect for anyone suffering from back pain.
Financing Options
Sleep Number 360 m7 Smart Mattress
Read Full Review
Material
Foam
Warranty
15-year limited warranty
Firmness
Multiple firmness options
Shipping Method
Flat-rate white glove delivery
Trial Period
100 nights
Price Range
$$$$$
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Hip Pain
This bed is perfect for anyone suffering from hip pain.
Back Pain
This bed is perfect for anyone suffering from back pain.
Financing Options
Sleep Number 360 m7 Smart Mattress
Read Full Review
Material
Foam
Firmness
Multiple firmness options
Trial Period
100 nights
Warranty
15-year limited warranty
Shipping Method
Flat-rate white glove delivery
Price Range
$$$$$
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Hip Pain
This bed is perfect for anyone suffering from hip pain.
Back Pain
This bed is perfect for anyone suffering from back pain.
Financing Options
More Casper Mattresses
Striking the perfect balance between the contour of memory foam and the bounce of pocket-coils, the Casper Hybrid offers the best of both worlds when it comes to superior comfort and support.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress. Striking the perfect balance between the contour of memory foam and the bounce of pocket-coils, the Casper Hybrid offers the best of both worlds when it comes to superior comfort and support.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress. Striking the perfect balance between the contour of memory foam and the bounce of pocket-coils, the Casper Hybrid offers the best of both worlds when it comes to superior comfort and support.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress.
Casper Hybrid Mattress
Read Full Review
Material
Hybrid
Trial Period
100 nights
Shipping Method
Free shipping
Firmness
Medium-soft: 5.5/10
Warranty
10-year limited warranty
Price Range
$$$$$
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Seniors
This bed is perfect for senior sleepers.
Back Pain
This bed is perfect for anyone suffering from back pain.
Financing Options
Casper Hybrid Mattress
Read Full Review
Material
Hybrid
Warranty
10-year limited warranty
Firmness
Medium-soft: 5.5/10
Shipping Method
Free shipping
Trial Period
100 nights
Price Range
$$$$$
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Seniors
This bed is perfect for senior sleepers.
Back Pain
This bed is perfect for anyone suffering from back pain.
Financing Options
Casper Hybrid Mattress
Read Full Review
Material
Hybrid
Firmness
Medium-soft: 5.5/10
Trial Period
100 nights
Warranty
10-year limited warranty
Shipping Method
Free shipping
Price Range
$$$$$
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Seniors
This bed is perfect for senior sleepers.
Back Pain
This bed is perfect for anyone suffering from back pain.
Financing Options
The Casper Wave Hybrid strikes a balance with a middle-of-the-road firmness level and features that make it appropriate for sleepers of all shapes and sizes. It’s an excellent choice for those who enjoy the Original Casper’s balance of conforming support but want more bounce.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress. The Casper Wave Hybrid strikes a balance with a middle-of-the-road firmness level and features that make it appropriate for sleepers of all shapes and sizes. It’s an excellent choice for those who enjoy the Original Casper’s balance of conforming support but want more bounce.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress. The Casper Wave Hybrid strikes a balance with a middle-of-the-road firmness level and features that make it appropriate for sleepers of all shapes and sizes. It’s an excellent choice for those who enjoy the Original Casper’s balance of conforming support but want more bounce.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress.
Casper Wave Hybrid Mattress
Read Full Review
Material
Hybrid
Trial Period
100 nights
Shipping Method
Free shipping
Firmness
Medium-soft: 5/10
Warranty
10-year limited warranty
Price Range
$$$$$
Seniors
This bed is perfect for senior sleepers.
Back Pain
This bed is perfect for anyone suffering from back pain.
Back Sleeping
Ideal for lightweight and average weight back sleepers.
Side Sleeping
Ideal for lightweight, average weight, and heavyweight side sleepers.
Financing Options
Casper Wave Hybrid Mattress
Read Full Review
Material
Hybrid
Warranty
10-year limited warranty
Firmness
Medium-soft: 5/10
Shipping Method
Free shipping
Trial Period
100 nights
Price Range
$$$$$
Seniors
This bed is perfect for senior sleepers.
Back Pain
This bed is perfect for anyone suffering from back pain.
Back Sleeping
Ideal for lightweight and average weight back sleepers.
Side Sleeping
Ideal for lightweight, average weight, and heavyweight side sleepers.
Financing Options
Casper Wave Hybrid Mattress
Read Full Review
Material
Hybrid
Firmness
Medium-soft: 5/10
Trial Period
100 nights
Warranty
10-year limited warranty
Shipping Method
Free shipping
Price Range
$$$$$
Seniors
This bed is perfect for senior sleepers.
Back Pain
This bed is perfect for anyone suffering from back pain.
Back Sleeping
Ideal for lightweight and average weight back sleepers.
Side Sleeping
Ideal for lightweight, average weight, and heavyweight side sleepers.
Financing Options
Extra plush foam makes this Casper's softest hybrid mattress yet. With seven zones of specialized support, this mattress is not too plush, and your spine should stay aligned all night. The cradling comfort foam combines with two layers of perforated cooling foam that promotes air flow and prevents heat trapping.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress. Extra plush foam makes this Casper's softest hybrid mattress yet. With seven zones of specialized support, this mattress is not too plush, and your spine should stay aligned all night. The cradling comfort foam combines with two layers of perforated cooling foam that promotes air flow and prevents heat trapping.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress. Extra plush foam makes this Casper's softest hybrid mattress yet. With seven zones of specialized support, this mattress is not too plush, and your spine should stay aligned all night. The cradling comfort foam combines with two layers of perforated cooling foam that promotes air flow and prevents heat trapping.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress.
Casper Nova Hybrid Mattress
Read Full Review
Material
Hybrid
Trial Period
100 nights
Shipping Method
Free shipping
Firmness
Medium-soft: 4/10
Warranty
10-year limited warranty
Price Range
$$$$$
Seniors
This bed is perfect for senior sleepers.
Back Pain
This bed is perfect for anyone suffering from back pain.
Back Sleeping
Ideal for lightweight and average weight back sleepers.
Stomach Sleeping
Ideal for lightweight and average weight stomach sleepers.
Financing Options
Casper Nova Hybrid Mattress
Read Full Review
Material
Hybrid
Warranty
10-year limited warranty
Firmness
Medium-soft: 4/10
Shipping Method
Free shipping
Trial Period
100 nights
Price Range
$$$$$
Seniors
This bed is perfect for senior sleepers.
Back Pain
This bed is perfect for anyone suffering from back pain.
Back Sleeping
Ideal for lightweight and average weight back sleepers.
Stomach Sleeping
Ideal for lightweight and average weight stomach sleepers.
Financing Options
Casper Nova Hybrid Mattress
Read Full Review
Material
Hybrid
Firmness
Medium-soft: 4/10
Trial Period
100 nights
Warranty
10-year limited warranty
Shipping Method
Free shipping
Price Range
$$$$$
Seniors
This bed is perfect for senior sleepers.
Back Pain
This bed is perfect for anyone suffering from back pain.
Back Sleeping
Ideal for lightweight and average weight back sleepers.
Stomach Sleeping
Ideal for lightweight and average weight stomach sleepers.
Financing Options
The Casper Element is not fancy. It features three memory foam layers, one each designed for comfort, support, and stability. Casper says all three are also breathable and able to release heat.
The Casper Element is not fancy. It features three memory foam layers, one each designed for comfort, support, and stability. Casper says all three are also breathable and able to release heat.
The Casper Element is not fancy. It features three memory foam layers, one each designed for comfort, support, and stability. Casper says all three are also breathable and able to release heat.
Casper Element Mattress
Read Full Review
Material
Foam
Trial Period
100 nights
Shipping Method
Free shipping
Firmness
Medium-firm: 6/10
Warranty
10-year limited warranty
Price Range
$$$$$
Casper Element Mattress
Read Full Review
Material
Foam
Warranty
10-year limited warranty
Firmness
Medium-firm: 6/10
Shipping Method
Free shipping
Trial Period
100 nights
Price Range
$$$$$
Casper Element Mattress
Read Full Review
Material
Foam
Firmness
Medium-firm: 6/10
Trial Period
100 nights
Warranty
10-year limited warranty
Shipping Method
Free shipping
Price Range
$$$$$
Haven’t made a decision yet? Check out these other comparisons:
Our Final Take
These mattresses are so different that choosing between the two really boils down to what you’re looking for. If you want that contouring, cloud-like all-foam feel, then definitely go with the Casper. The Casper is also a better fit for budget-minded shoppers who are looking for a high-quality mattress with a universal firmness. The only folks we think should steer clear are stomach sleepers and those who get really hot at night.
The Sleep Number is a luxury mattress, so it’s higher cost, but you get the adaptability of literally 100 different firmness levels, plus the ability to customize each side of the mattress. For these reasons, we favor it for couples. It’s also a uniquely ideal choice for combination sleepers since the air-fill levels adapt to your changes in sleeping position in real-time.
