Our Casper vs. Lull Mattress Comparison for 2024

Written by Jill Zwarensteyn, Editor

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In This Article

Casper vs Lull: which all-form bed is better? Find out in our comparison.

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The Casper and the Lull are both all-foam beds. In other words, both of these mattresses mix in a dash of memory foam materials and a dedication to support.

Casper is an innovative bed-in-a-box company that buzzed onto the scene almost a decade ago. Lull, on the other hand, was created out of frustration for the mattress industry. Lull claims that their compressed and boxed mattresses are on equal footing with more expensive in-store brands.

In this Casper vs Lull comparison, we provide in-depth reviews of each brand and show the characteristics that they share as well as how they differ so that you can better understand which mattress may be right for you.

Comparing Firmness, Support & Feel

Firmness

A mattress’s firmness is simply how hard or how soft the bed feels when you lie on top of it. Of course, this is a subjective matter and several factors have to be taken into account. However, a general consensus can usually be formed. The Casper and the Lull are both rated at a 6 out of 10 on our firmness scale and this translates to a medium firmness. Mattresses within the medium scoring range are usually good for most sleeping positions and body types.

Support

Casper is a brand that aims for a universal feel, and their newly updated third layer that bolsters the center of the construction and expands the brand’s versatility even more. This bed pays special attention to the needs of sleepers with different sleep positions. However, the Lull still offers a good bit of support; it is just overall and not necessarily in the targeted areas of the Casper.

Feel

The Lull features a breathable top cover that is made from polyester and rayon, which should feel cool to the touch, you’ll feel slower with Lull than you will with Casper. The Casper provides a bit more surface contouring while the thicker base provides good spinal alignment for back, side, and stomach sleepers. The overall experience of the mattress is slightly quicker to respond due to the thicker and denser base and transition layers, and it is also a bed that offers good versatility.

Comparing Sinkage and Bounce

We would characterize the sinkage in both of these mattresses as a gentle cradle, meaning your body will rest more on top of it than deep inside it, as can be the case with some competing memory products. Surface-level sleeping helps with temperature regulation because it brings your body into contact with circulating airflow.

Both brands deliver some bounce but from different sources. Casper’s bounce is mostly located on its surface while Lull’s bounce is more mid-level. This feature in both can work with the quicker-responding layers in each to aid repositioning.

Comparing Motion Transfer

Foam mattresses tend to do a good job of absorbing and isolating motion. This generally means that couples and other co-sleepers who spend their nights with a restless partner or pet, will not be disturbed by the twists and turns of those who share their bed. Motion isolation is exceptional in both the Casper and Lull because of the combination of memory products and dense bases that do not conduct vibration and tend to muffle it at its source. People who are easily disturbed by their partner or pets getting in and out of the bed will enjoy both mattress’ limited motion transfer.

Comparing Cooling

These may be all-foam beds, but both the Casper and the Lull have included cooling properties in their beds. Both mattresses do a good job keeping you cool, but they use different ways to achieve it. Casper has implemented their proprietary AirScape™ foam at the top to help you stay cool. This foam is perforated to boost airflow. When air can move quickly through the foam, there is less chance that body heat will become trapped. The top memory foam layer of the Lull features gel, which should help keep the bed cool while you sleep.

Want to explore more cooling mattresses? Find our best mattresses for hot sleepers.

Comparing Construction (Materials & Quality)

Casper Construction

The Casper mattress is a bed-in-a-box foam mattress that stands a total of 11 inches tall. The bed’s layers are wrapped in a durable polyester fabric. All the foams in the Casper Original are also CertiPUR-US® certified to ensure you’re getting a quality and safe product.

• Beneath the cover is the first foam layer. This unit is a perforated proprietary comfort foam called AirScape™ that gives the mattress some bounce and breathability to keep the surface from overheating.
• The middle foam layer is 2 inches of Zoned Support™, a memory foam that is firmer in the center of the bed where your hips are positioned, helping with the extra weight that tends to concentrate in this region. Additionally, this layer is softer around your shoulders and knees for extra pressure relief.
• The base layer is a unit of dense foam that lends durability, provides support, and creates the overall foundation of the Casper mattress.

Lull Construction

This handcrafted cover is designed to offer a soft yet durable and flexible surface space. The cover is white on top and gray along the bottom half for a subtle, sophisticated look.

In total, the Lull bed stands at 10 inches tall.

• Below the cover, you will find the 1.5-inch Cooling Comfort layer. The memory foam here is infused with gel for additional cooling, so you sleep comfortably and don’t get too hot during the night.
• The middle layer of the Lull is 1.5 inches of Therapeutic Support foam. This highly resilient foam layer is designed to cultivate good spine alignment and evenly distribute motion so that you don’t sink too deeply into the bed. This foam also serves as the transitional layer between the memory foam and the support foam.
• The base of this mattress is a durable foam unit that is 7 inches thick. The bottom layer provides durability and sturdy support.

Comparing Company Policies & Price

• Warranty – The Casper comes with an industry-standard 10-year limited warranty. The Lull has the clear advantage here as they offer a lifetime limited warranty.
• Shipping – Lull offers free shipping within the contiguous United States, and offers a shipping subsidy for Alaska and Hawaii to make it more affordable. Casper offers free shipping to all 50 states and Canada, as well.
• Trial Period – You can try out the Casper for 100 nights. If it’s not your dream match you can get a full refund. On the other hand you will have considerably longer to make your financial decision with the Lull, as they offer a 365 night trial.
• Returns – Casper asks that you sleep on the mattress for at least 30 nights before you return it. However, after this time you can return your mattress for free as long as it is within the 100-night trial. If after sleeping on your Lull for up to a year, you find that you’re not satisfied, you can return your mattress for a full refund.
• Price – Although there are some price differences depending on the mattress size, overall the Lull and the Casper are fairly comparable. There is between $100-200 difference.

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Casper vs. Lull Compared Side-by-Side

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Final Thoughts

When it comes to the all-foam Lull duking it out with another all-foam all-star, the Casper, there are many similarities. However, there are enough differences that you can likely pinpoint one over the other if you have certain specifications. Do you want the enhanced and newly updated support system of Casper or would you rather experience the surface level sink in the slightly more affordable Lull?

It is a tough call, but fortunately you probably won’t be making a bad decision with either of these mattresses. If you still need some additional details, you can find them in our in-depth reviews of both brands that are available on our website.

Product

Firmness

Trial Period

Casper Original Mattress

Medium-firm: 6/10

100 nights

CHECK PRICE

Read Casper Original Mattress Review

Lull Mattress

Medium-firm: 6/10

365 nights

CHECK PRICE

Read Lull Mattress Review

Product

Casper Original Mattress

Firmness

Medium-firm: 6/10

Trial Period

100 nights

CHECK PRICE

Read Casper Original Mattress Review

Product

Lull Mattress

Firmness

Medium-firm: 6/10

Trial Period

365 nights

CHECK PRICE

Read Lull Mattress Review

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• Casper vs. Leesa
• Casper vs. Novosbed
• Casper vs. WinkBed
• Loom & Leaf vs. Casper
• Nectar vs. Casper
• Amerisleep vs. Casper
• Ghostbed vs. Casper
• Helix vs. Casper
• Alexander Signature Hybrid vs. Casper

Jill Zwarensteyn

Editor

About Author

Jill Zwarensteyn is the Editor for Sleep Advisor and a Certified Sleep Science Coach. She is enthusiastic about providing helpful and engaging information on all things sleep and wellness.

Combination Sleeper