SweetNight vs Lull: CoolNest Hybrid for Hybrid Buyers

Choose SweetNight CoolNest Hybrid if you want a cooling-oriented hybrid; choose Lull Original Premium if you want an all-foam mattress. The concrete reason to skip SweetNight is a firm preference for foam without coils, and Lull is the direct alternative for that choice.

A strong alternative

Saatva Classic – an innerspring alternative to CoolNest and Lull

365-night home trial
Free white-glove delivery; free old-mattress removal when selected at checkout
Lifetime warranty
A Euro pillow top over a dual-coil design

Check today’s Saatva price →

Who should choose SweetNight CoolNest Hybrid or Lull Original Premium?

SweetNight CoolNest Hybrid suits shoppers who want a hybrid and are interested in a mattress marketed for hot sleepers. Lull Original Premium suits shoppers who prefer all-foam construction and a medium-firm feel. Lull describes its mattress as having five layers, while CoolNest offers a choice of thicknesses for shoppers comparing configurations.

Choose SweetNight if your priority is a design that combines cushioning materials with a coil support system. Its cooling-focused presentation is also a reason to consider it, though marketing language is not proof of a temperature result for every sleeper. For other coil-and-foam choices, our best hybrid mattress selection includes options for shoppers whose main filter is hybrid construction.

Choose Lull if you want memory foam rather than coils, and prefer a mattress described as medium-firm. Its stated construction and feel make it the more direct match for that preference. Shoppers comparing other all-foam options can explore our best memory foam mattress selection. The deciding point in this matchup is not that one construction suits everyone, but whether you want a hybrid or foam-only design.

What are the key differences between these mattresses?

The most important difference is construction: CoolNest is a hybrid, while Lull Original Premium is an all-foam mattress. SweetNight lists three thicknesses for CoolNest, and the table summarizes how the stated feel, support details and materials compare. These are product descriptions, not independent performance scores.

Feature	SweetNight CoolNest Hybrid Mattress	Lull Original Premium Mattress
Construction	Foam comfort layers with pocket coils	Memory foam construction
Height options	12, 14 or 16 inches	12 inches
Stated feel	Cushioned pillow top	Medium-firm
Support detail	Zoned support foam on the 14-inch and 16-inch models	High-resilience foam above a high-density foam base

The configurations are not identical, so it helps to compare the version you are considering rather than treating every CoolNest thickness as the same build. That is especially relevant when zoned support foam is an important part of your decision.

How do SweetNight CoolNest Hybrid and Lull Original Premium feel?

The two mattresses offer different routes to comfort: CoolNest combines cushioning with a spring-based design, while Lull is a foam mattress with a medium-firm description. That distinction can help shoppers narrow the choice before comparing each brand’s language about contouring and support.

SweetNight describes CoolNest as having a cushioned pillow top. That makes its stated feel a useful starting point for shoppers who want a padded comfort surface as part of a hybrid design. The brand does not give a numerical firmness rating in the listed product details, so there is no number to use for a direct firmness-scale comparison.

Lull describes Original Premium as medium-firm and says its high-resilience foam is intended to contour while limiting excess sinkage. Those are the brand’s descriptions of the foam and its intended feel. For a buyer who wants foam but does not want the product presented as an especially deep-sinking design, that stated balance is a relevant point of comparison.

In practical terms, make the construction choice first, then use each brand’s stated feel to refine it. A preference for a coil-based design points toward CoolNest; a preference for an all-foam mattress points toward Lull. Neither label turns into a shared numerical scale, so the two brands’ descriptions should be read as separate descriptions rather than matching ratings.

Which cooling features do these mattresses offer?

SweetNight names cooling as a central CoolNest feature and lists materials such as an ice silk cover, gel-infused memory foam and PCMflux foam. Lull also promotes cooling materials, including gel beads and open-cell foam. Both brands describe cooling benefits, but those claims do not establish a measured winner between the mattresses.

SweetNight calls its approach the CoolNest system and presents the mattress for hot sleepers. Its listed components give shoppers concrete materials to compare when evaluating that positioning. The product page also names foam layers and a cover as parts of the design, rather than relying only on the word cooling in the product name.

Lull says its gel-infused memory foam is designed to help keep sleepers cool, and says open-cell foam increases air circulation. Those are the brand’s stated aims for its materials. A shopper who prefers foam can weigh those features against CoolNest’s listed materials without assuming that the marketing claims predict the same result in every bedroom.

The useful distinction is where each brand places its cooling-oriented materials: in SweetNight’s hybrid design or in Lull’s foam construction. If cooling is a priority, consider that alongside your construction preference rather than treating either product description as a guarantee of a particular sleep temperature.

What should you know about price, trial and delivery?

SweetNight states a 100-night sleep trial, while Lull offers a 365-night in-home trial. These details provide a concrete point of comparison for shoppers weighing purchase terms, while the mattresses still differ in construction and feel.

SweetNight states that mattress shipping is free in the United States. Lull lists free shipping in the contiguous United States and a fee for Alaska and Hawaii. The distinction matters for shoppers whose delivery address is outside the contiguous states, since the listed shipping terms are not identical.

SweetNight includes a 10-year limited warranty for manufacturing defects, with a sag of more than 1 inch among its examples. That is a specific warranty term to weigh alongside the product’s materials and purchase conditions. Lull’s product details emphasize its trial and construction; the comparison here does not assign it a warranty term.

For price, Lull’s queen list price is tied to that size. CoolNest has multiple thickness choices, so a direct dollar comparison depends on the configuration being considered. SweetNight and Lull product pages may show promotional offers, so shoppers should compare the listed amount for the same size and configuration rather than treating a promotion as a permanent price.

Still deciding? CoolNest pairs a hybrid design with cooling-focused materials, while Saatva Classic is a separate innerspring alternative with distinct comfort choices.
See the Saatva Classic price in your size →

Who should not buy SweetNight CoolNest Hybrid or Lull Original Premium?

Neither mattress is the right choice for every construction preference, and the two models should not be treated as interchangeable. SweetNight requires a minimum 30-night period before a return, a specific condition that may not suit a shopper who wants the option to decide sooner.

Skip SweetNight if your clear requirement is an all-foam mattress without coils. CoolNest is a hybrid, so Lull is the more direct choice for someone who does not want a spring-based component. The inverse applies too: if coils are essential to your choice, Lull’s memory foam construction does not meet that requirement.

Shoppers who need a numerical firmness rating to compare models should also note that SweetNight’s listed details describe its feel without a number. Lull uses the qualitative term medium-firm. Those descriptions can guide a construction-led decision, but they do not provide matching numerical ratings across the two products.

Is Saatva Classic a useful alternative to these mattresses?

Saatva Classic is an alternative for shoppers considering a traditional innerspring design, and Saatva offers three comfort levels: Plush Soft, Luxury Firm and Firm. That makes it a distinct option for someone who wants a choice of stated feels alongside an innerspring construction rather than either product in this comparison.

Saatva describes Plush Soft as body-hugging, Luxury Firm as a medium feel and Firm as a floating-on-top feel. The brand identifies Plush Soft as suited to side sleepers and lighter-weight people, and Firm as suited to stomach and back sleepers or heavier body types. Those are Saatva’s stated recommendations, not a guarantee that a particular comfort level will suit every person in those groups.

Saatva also describes Classic as having Lumbar Zone technology and a breathable cover made with organic cotton. These are manufacturer claims about the mattress’s design. The relevant difference for this comparison is that Saatva presents a traditional innerspring option with several comfort choices, rather than the SweetNight hybrid or Lull all-foam model.

Read our Saatva Classic review for its construction and comfort-level details. For this matchup, Saatva is an alternative rather than a reason to disregard the original choice: SweetNight fits a shopper who wants a hybrid, and Lull fits one who wants all-foam construction.

What else should shoppers know before choosing?

SweetNight says to allow 72 hours for CoolNest to fully expand after unboxing. That setup detail is useful when planning the first days after delivery. The answers below cover other product-specific questions about construction, materials and the brand’s manufacturing description.

Does CoolNest include zoned support foam in every version?

No. SweetNight lists zoned support foam for the 14-inch and 16-inch versions only. Shoppers comparing the 12-inch version should not assume it includes that layer.

Are the foams in SweetNight CoolNest and Lull Original Premium certified?

Both brands list CertiPUR-US certification for their foams. SweetNight also lists OEKO-TEX Standard 100 certification for the mattress fabric, while Lull says it is a member of the Sustainable Furnishings Council.

Where is Lull Original Premium made?

Lull says Original Premium is crafted and assembled in the United States using domestic and imported materials.

Which mattress should you buy overall?

SweetNight CoolNest Hybrid is the stronger choice for shoppers who want a hybrid and value its cooling-oriented materials. Lull Original Premium is the better match for a shopper who prefers all-foam construction and a medium-firm description. The best fit in this comparison depends on which of those clear priorities matters more.

World Sleep Almanac score: 8.0/10. Construction clarity: 8.5/10; cooling-oriented materials: 8.0/10; configuration choices: 8.0/10; purchase-term clarity: 7.5/10. The score averages these four editorial criteria, based on the listed construction, materials, configurations and purchase terms.

SweetNight wins this face-off for hybrid shoppers; Lull is the more direct choice for shoppers who want all-foam construction. Saatva Classic is a separate innerspring alternative for shoppers who want to choose among distinct comfort levels.

A strong alternative: Saatva Classic offers an innerspring design with a Euro pillow top and dual-coil construction.