All Comparisons
    Mattress Comparison
    Novaform ComfortGrande mattress

    Novaform ComfortGrande

    VS
    SweetNight CoolNest mattress

    SweetNight CoolNest

    Novaform ComfortGrande vs. SweetNight CoolNest

    Side-by-side comparison of the Novaform ComfortGrande (Memory Foam) and SweetNight CoolNest (Memory Foam). Compare comfort, cooling, support, value and more — based on our lab testing.

    By Sleep Sage Editorial Team

    Side-by-side mattress testing · 144+ comparisons published

    Updated May 2026
    Category
    Novaform ComfortGrande
    SweetNight CoolNest
    Comfort
    8.5/10
    8.5/10
    Support
    8.3/10
    8.2/10
    Cooling
    8/10
    9/10
    Edge Support
    7.8/10
    7.2/10
    Motion Isolation
    8.8/10
    8.6/10
    Durability
    8.2/10
    8/10
    Value
    9.5/10
    9.4/10

    Quick Specs Comparison

    Spec
    Novaform ComfortGrande
    SweetNight CoolNest
    Price (Queen)
    $449
    $399
    Type
    Memory Foam
    Memory Foam
    Firmness
    5.5/10
    6/10
    Height
    14 inches
    12"
    Trial
    Costco return policy
    100 nights
    Warranty
    20 years
    10 years
    Shipping
    Free shipping from Costco
    Free shipping & returns

    Key Advantages

    Why Choose Novaform ComfortGrande

    • Incredible Costco value
    • 14-inch luxury height
    • Costco's unlimited return policy

    Why Choose SweetNight CoolNest

    • Exceptional cooling with 4-layer CoolNest temperature regulation system
    • Outstanding value — Queen size under $400
    • ACA certified for spinal support and alignment

    Still Not Sure Which to Choose?

    Take our personalized sleep quiz to get matched with the ideal mattress for your needs.

    Take the Sleep QuizView All Comparisons

    More Resources

    Brands behind these picks

    Before you buy, read the brand: construction, pricing bands, trial and warranty terms, and how each company's lineup performed in our Encinitas lab.

    Browse every mattress brand we cover

    Continue exploring

    Hand-picked guides and reviews from our editorial team.