Review in progress: This initial assessment uses manufacturer information. Ben will add hands-on observations, original photos and video after testing. No Yawnder performance score has been assigned.
Disclosure: SweetNight supplied review samples. We may earn a commission through our shopping links.
Our Preliminary Verdict
The CoolNest Foam is worth comparing if you want an all-foam mattress with temperature-focused materials. The buying decision depends on whether its contouring and support suit you; we have not yet established that through our own testing. This review covers the standard CoolNest Memory Foam model, not the Pro, Ultra or Hybrid.
SweetNight coupon: Use code Yawnder for 20% off on top of website discounts, as supplied by SweetNight’s affiliate team. Confirm the discount and eligible items in your cart before paying. Shop SweetNight.
At a Glance
| Construction | All foam; no pocket-coil support unit |
|---|---|
| Listed heights | 12, 14 and 16 inches; availability varies |
| Listed materials | Cooling cover, PCMflux foam, gel memory foam and support foam |
| Our testing status | Hands-on results pending |
Who Should Consider It?
Start here if you prefer foam contouring and want to compare the final price against the CoolNest Hybrid. If you prioritize easy movement, firm perimeter support or a particularly firm feel, wait for our testing or try a mattress locally before deciding.
Construction and Cooling Claims
SweetNight describes a knitted cooling cover, phase-change material in its PCMflux layer, memory foam and zoned support. These are passive materials, not a powered cooling system. We have not verified its advertised temperature reduction. A cool initial touch and comfort after several hours are separate questions.
What Our Hands-On Review Will Add
- Exact sample size and height, expansion and initial odor.
- Firmness impressions and shoulder/hip comfort in different positions.
- Movement between positions, partner disturbance and edge compression.
- Temperature with ordinary sheets and a mattress protector.
- Original construction photos and a video review.
We will identify the tested configuration so findings are not incorrectly applied to every height. Until then, this page carries no measured cooling, pressure-relief or durability claims.
Price, Coupon and Returns
Select the size and height before comparing prices. An additional 20% reduction means multiplying an eligible discounted price by 0.80; for example, a $500 eligible subtotal would become $400 before taxes or other charges. This is an illustration, not a current price quote.
SweetNight advertises a 100-night direct mattress trial and a 10-year warranty. Its current policy requires at least 30 nights of use for an opened mattress before requesting a comfort return; eligibility and other restrictions apply. Read the current return policy for minimum-use requirements and eligibility before ordering. Retailer purchases can have different terms.
FAQs
Is CoolNest Foam the same as CoolNest Hybrid?
No. The foam model uses a foam support system; the Hybrid includes pocketed coils. We maintain separate reviews.
Have you tested its cooling?
Not yet. Our hands-on results will be added here, with the tested configuration and conditions.
Which height should I choose?
Measure total bed height and sheet pocket depth first. Extra thickness alone does not prove better comfort or longer life.
Product information source: SweetNight CoolNest Memory Foam, checked November 4, 2026.
Compare SweetNight Products
| Feature |  CoolNest Foam |  CoolNest Hybrid |
|---|---|---|
| Support core | All foam | Pocketed coils with foam comfort layers |
| Height options | 12, 14 and 16 inches listed; availability varies | 12, 14 and 16 inches listed; availability varies |
| Brand-described feel | Medium in the standard model | Medium-firm in the Hybrid |
| Cooling | Cooling-oriented cover and foam; passive materials | Cooling-oriented cover and foam with coil airflow; passive materials |
| Who may compare it | Shoppers who prefer foam contouring | Shoppers who prefer a foam-and-coil construction |
Manufacturer descriptions, not a Yawnder head-to-head test. Comfort and cooling depend on the exact model, bedding and sleeper.
- CoolNest Hybrid review — foam over pocketed coils.
- Cooling Pillows review — adjustable-fill pillow pair.