Casper vs. Lull Mattress Comparison

Shopping for the right mattress can be tricky. That’s why we’re making it easy for you to choose its sizing and pricing, mattress construction, firmness and feel the difference, and so much more in this in-depth comparison of the Casper and Lull mattresses. Check out what others are saying about our testing methodology. 

Product

Firmness

Score

Product

Casper Original Mattress

Firmness

Medium-firm: 6/10

Score

4.8 / 5

Check Price

Read Casper Original Mattress Review

Product

Lull Mattress

Firmness

Medium-firm: 7/10

Score

4.6 / 5

Check Price

Read Lull Mattress Review

Casper vs. Lull Overview

The Casper Original mattress is an all-foam bed with zoned memory foam that’s designed for ergonomic support. The Lull is a memory foam mattress with a slightly firmer-than-average feel and deep body contouring. 

Casper is best for…	Lull is best for…
All sleeping positions	Back sleepers
People with back pain	Couples and those who co-sleep
Couples who share a bed	Memory foam mattress fans

Who Should Choose the Casper Mattress?

• All sleeping positions: The Casper Original has softer foam at the shoulders and firmer foam at the hips and back, offering ergonomic support that keeps back, stomach, and side sleepers adequately supported.  
• People with back pain: The Casper’s ergonomically zoned transition layer perfectly keeps the spine properly aligned no matter what position you sleep in. As a result, it’s a good mattress for people with neck or back pain. 
• Couples who share a bed: The Casper Original bed helps couples achieve restful sleep together. Couples with different sleeping habits are likely to wake up without new aches and pain by supporting every sleeping position. And with an all-foam construction that absorbs rather than transmits motion, you won’t be jostled around with every move.

Who Should Choose the Lull Mattress?

• Back sleepers: The Lull’s surface has a firmer medium-firm feel that slowly conforms to the body. The contouring offers outstanding support for back sleepers who weigh under 230 pounds. 
• Couples and those who co-sleep: The Lull’s firmness is considered universal firmness, which means it’s likely to support the comfort preferences of many couples. Additionally, the foams isolate motion to help couples sleep without interruptions.  
• Memory foam mattress fans: The Lull mattress has a top layer of memory foam that conforms to the body, bringing a distinct memory foam feel.

Casper vs. Lull: Top Similarities 

• Construction: The Lull and Casper are memory foam mattresses that pair memory foam with two layers of polyfoam. 
• Not ideal for heavier people: These mattresses have average cushion and support that isn’t sufficient for most people over 230 lbs.
• Great motion isolation: Both beds are made entirely of foam with memory foam layers that dampen motion transfer, helping couples sleep without waking one another.

Casper vs. Lull: Top Differences 

• Feel: The Lull mattress utilizes memory foam along the top layer and polyfoam in the second layer, while Casper does the opposite. This means the Lull has a more traditional hugging memory foam feel while the Casper has a more balanced, responsive feel.  
• Zoned support: The Casper mattress has a zoned support memory foam layer that means more cushion at the shoulders and greater firmness along the spine and hips. The Lull doesn’t have ergonomic zoning, so the firmness and feel are the same across the entire mattress surface. 
• Sleep position suitability: Thanks to Casper’s ergonomic support zones, it works for back, side, and stomach sleepers. The Lull’s uniform medium-firm support is best for back sleepers, although it’s okay for lightweight stomach and average-weight side sleepers.

Casper vs. Lull: Firmness & Feel Differences

Firmness and feel can be a deal-breaker when choosing the right mattress. Here, we’ll detail the specific firmness and feel differences between the Casper and the Lull. 

What’s the Firmness Of the Casper & Lull  Mattresses? 

The Casper Original is a medium-firm mattress that does an excellent job at delivering a balanced sleep experience that suits every sleeping position.The Lull mattress is a medium-firm mattress that skews slightly to the firmer side of the medium. It relieves pressure and keeps the spine aligned for most average sleepers and even for heavier back sleepers. If the Lull is not supportive enough for you, see the best mattress for heavy people.

What Do the  Casper & Lull Mattresses Feel Like?

The Casper Original’s comfort layer is a plush and responsive polyfoam that brings immediate comfort and light contouring that works well for back, stomach, and side sleepers. The Lull mattress will be enjoyed by back sleepers thanks to the memory foam that hugs your body. 

What’s It Like to Sleep On the Casper & Lull Mattresses?

Lightweight and average-weight people would find ergonomic support for the lower spine and the shoulders when sleeping on the Casper mattress.  While the Lull mattress begins with a layer of contouring memory foam along the top of the bed. This memory foam slowly molds to your body’s curves, evenly distributing weight for a healthy spinal posture and some nice pressure relief. 

The Casper vs. Lull Mattresses By Body Type

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

Lull Performance By Body Type & Sleeping Position:

Body Type:	BACK SLEEPERS	STOMACH SLEEPERS	SIDE SLEEPERS
Lightweight (< 130 lbs):	5	3	3
Average-weight (130–230 lbs):	5	3	4
Heavyweight (> 230 lbs):	3	2	4

1 = Very poor, 2 = Not good, 3 = Fair, 4 = Good, 5 = Excellent

Average-Weight Sleepers (130–230 lbs)

Average-weight back sleepers fare well on the Lull—it evenly distributes the weight across the body and supports the lower back to keep the spine aligned. To add, average-weight side sleepers on the Lull will find a good balance of softness and support, and provide excellent pressure relief, so you can wake feeling rested and refreshed instead of sore and tight. The Casper mattress provides excellent comfort for average-weight back sleepers and side sleepers. It keeps the hips and neck in line while also protecting pressure points such as the shoulders, hips, and lower parts of the back. 

Heavyweight Sleepers (> 230 lbs)

Heavyweight stomach sleepers and side sleepers might not get the proper spine alignment and comfortable pressure relief they need on the Casper mattress. If you are a heavyweight sleeper and weigh over 250 lbs, the Lull isn’t the best choice—you may want to look for a thicker mattress (12″ or more), so you can get the proper support you need.

Lightweight Sleepers (< 130 lbs)

Lightweight back sleepers can look forward to the Casper mattress, especially when you’re looking for one that fills in the small of your back. Combination sleepers who move around often throughout the night are a good fit for the Casper mattress. On the other hand, lightweight stomach sleepers are suitable for the Lull. 

Differences In Mattress Construction 

Both the Original Casper and the Lull mattresses are made from three layers of foam but the Lull is “10” while the Casper is thicker with “11”.

Casper Mattress Materials	Lull Mattress Materials
Breathable Mattress Cover	Breathable Mattress Cover
AirScape Polyfoam	Gel Memory Foam
Ergonomically Zoned Memory Foam	High-Resilience Polyfoam
High-Density Polyfoam Base	Durable Polyfoam Base
“11”	“10”

Cover

Casper’s cover is made from a fabric blend that contains up to 57 recycled bottles. At the same time, the Lull mattress uses a breathable mattress cover while 

Comfort Layers

Casper’s proprietary Airscape foam is soft, delivering a generous cushion along the mattress surface. Lull’s comfort layer is a gel memory foam that is optimized for minimal motion transfer. 

Support Layers

The Casper’s support layer is a durable and dense polyurethane foam that brings a distinct all-foam mattress fee that provides excellent cushion and motion isolation. The support layer of the Lull mattress ensures full muscle rest and rejuvenation. 

Casper vs. Lull Pricing

Size	Casper Prices	Lull Prices
Twin	$895.00	$755.00
Twin XL	$995.00	$799.00
Full	$1195.00	$1099.00
Queen	$1295.00	$1199.00
King	$1695.00	$1699.00
California King	$1695.00	$1699.00

For exclusive discounts on both beds see our Casper mattress coupons and Lull mattress coupons.

Casper vs. Lull Mattress Performance Ratings & Differences

Casper 4.8/5

The Casper Original mattress is an all-foam bed that pairs plush polyfoam with Zoned Support memory foam for excellent pressure relief and body alignment. The Casper Original provides comfort for back, stomach, side and combination sleepers who weigh less than 230 lbs, and its motion isolation makes it good for couples.

The Lull 4.6/5

Lull offers a well-rounded mattress with a thoughtful design that addresses the typical issues with traditional mattresses. Expect temperature regulation, advanced support, good motion isolation, and lasting durability.

Temperature

Neither the Casper nor the Lull mattress is our top pick for hot sleepers. Both incorporate some cooling along the sleeping surface, using perforated foam in the Casper and cooling gel in the Lull. But their all-foam constructions mean greater body heat retention. 

Motion Transfer

Because the Casper and Lull are both all-foam beds with motion-dampening memory foam layers, they each excel at motion isolation. Couples and people who sleep with a pet or child are likely to enjoy few sleep disturbances on either mattress.  

Edge Support 

Both the Casper and Lull mattresses have pretty comfortable edges, so you can lie along them without worrying you might fall off. Our only word of caution is that heavier people may not find the edges sturdy enough for sitting.  

Pressure Relief 

The Casper has a soft polyfoam top layer that provides a bit more cushion than the Lull. And with softer foam at the shoulders—the most problematic pressure point for side sleepers—the Casper delivers superb pressure relief for side sleepers of every body weight. The Lull’s surface has a medium-firm memory foam that takes some time to respond to pressure.

Pain Relief 

The Casper is one of the best beds for lightweight and average-weight people with back pain. With a soft comfort layer that cushions the body and a Zoned Support transition layer, the Casper is designed to keep the spine properly supported in every sleeping position. The Lull provides superior spinal support for most stomach sleepers thanks to a firmer surface. By keeping the hips aligned with the shoulders, the Lull minimizes the potential for lower back pain—although heavyweight stomach sleepers should consider a mattress designed for bigger bodies. 

Durability: 

The Casper’s durable foam base and stronger memory foam along the middle of the mattress will likely last lightweight and average-weight people around seven to ten years with plenty of support for healthy spinal alignment in every sleeping position. The Lull may better resist the gradual softening that happens with foams because it has a firmer transition layer.

Shipping, Returns, & Warranties 

Casper

Casper offers free shipping to the 48 continental United States and parts of Canada. Casper mattresses come with a risk-free 100-night trial. At any time during the first 100 nights that you own your new mattress. Your new Casper bed is backed by an industry-standard 10-year limited warranty. The warranty covers defects, such as cracks in the foam or indentations greater than 1”.  For more information, see our Casper mattress warranty breakdown.

Lull

Lull also offers free shipping to the contiguous United States with a fee for shipments to Alaska and Hawaii. Lull’s 100-night sleep trial has the same terms as Casper’s. You may return your bed at any time during the trial period for a full refund. The Lull mattress also comes with a 10-year limited warranty that covers defects in workmanship or materials. Similar to Casper, Lull covers body impressions greater than 1” as well as defects like flaws in the foam or fabric.

More Casper Mattresses

Still Can’t Decide? Look at some of our most popular mattress comparisons:

• Casper vs. Amerisleep
• Casper vs. Bear
• Casper vs. Brooklyn Bedding
• Casper vs. GhostBed
• Casper vs. Helix
• Casper vs. Layla
• Casper vs. Leesa
• Casper vs. Loom & Leaf
• Casper vs. Nectar
• Casper vs. Puffy
• Casper vs. Purple
• Casper vs. Saatva
• Casper vs. Tempur-Pedic
• Casper vs. Tuft & Needle
• Casper vs. WinkBeds
• Casper Nova Hybrid vs. Layla Hybrid
• Casper Mattress Alternatives
• Lull vs. Layla
• Lull vs. Leesa
• Lull vs. Nectar
• Lull vs. Purple

Our Final Take

The Lull is a classic memory foam mattress with contouring support that works well for couples and back sleepers. The Casper’s zoned support means better cushioning for the average side sleepers. These mattresses are priced similarly, but you’ll save on the Casper.

Casper & Lull FAQs

Will the Lull Mattress have off-gassing smells?

All-foam mattresses will have a smell when you unbox them. This is from the materials used to create the foams that are in the mattresses. The scent is not harmful and should be gone within a few days.

Do I need to flip my Lull Mattress?

Nope! You don’t have to worry about that with the Lull as it isn’t designed to be flipped. If you sleep with a partner and there is a significant difference in weight between the two of you, then Lull recommends rotating the mattress every few months.

Do Casper mattresses sag?

Casper mattresses are unlikely to sag in the first seven to ten years of ownership so long as they are set atop a supportive base. Casper covers body indentations of greater than 1u201d during the 10-year warranty, so you’re covered in the case of a deep impression.