SweetNight CoolNest Memory Foam, 14-inch

Sources & review notes

• Exact model — CoolNest Memory Foam Mattress ("Basic"), 14-inch "Enhanced Cooling" height, sold on sweetnight.com. Checked 2026-11-07. The queen in this height carries SKU SN-M01518-14-Q. It is not the CoolNest Pro, Ultra or Hybrid, which share the page’s model selector or buying guide, and not the Walmart-only CoolNest Essential. It is also not the 12-inch or 16-inch height of the same mattress: SweetNight sells all three under one listing, and they feel different.
• Type — All-foam: PCM-infused foam and gel memory foam over polyfoam. Checked 2026-11-07. The listing’s layer graphic shows a 3D-knit nylon cover, PCMflux high-resilience foam, gel-infused memory foam, adaptive comfort foam, transition foam, high-density support foam and a base layer. The same page’s Materials tab lists a different stack ending in “5-Zone Support Foam (With 9 Comfort Bars).” SweetNight publishes no thicknesses or densities; RTINGS measured four foam layers of 1.0, 2.0, 5.7 and 4.9 in on its unit.
• Firmness — SweetNight says “Medium”; RTINGS measured medium-plush. Checked 2026-11-07. The buying-guide table calls this model Medium, while an FAQ on the same page says “medium-firm (6.5 out of 10).” RTINGS measured 39 Pa/mm on the 14-inch queen and classifies it medium-plush. The 12-inch and 16-inch heights are not expected to feel the same.
• Height — 14 inches (listed); 13.6 in measured. Checked 2026-11-07. SweetNight sells 12, 14 and 16 in under one listing. RTINGS measured its 14-inch unit at 34.5 cm, about 13.6 in, after expansion. Several reviews online describe the 16-inch height instead.
• Price — Check current price — $469.99 queen listed. Checked 2026-11-07. For the 14-inch height on the checked date, against a $783.31 compare-at figure under a Black Friday banner. The 12-inch queen listed at $399.99 and the 16-inch at $599.99. An FAQ on the same page still quotes “$499 for Queen.” Other 14-inch sizes listed: Twin $329.99, Twin XL $349.99, Full $449.99, King $549.99, Cal King $649.99.
• Trial — 100 nights, 30-night minimum, sweetnight.com orders only. Checked 2026-11-07. SweetNight will not accept a return request on an opened mattress before 30 nights. The trial is limited to one mattress per household per year, and mattresses bought on Amazon, Walmart or other retailers follow that retailer’s policy instead.
• Delivery — Free FedEx delivery, 3–5 business days, contiguous US. Checked 2026-11-07. The listing says in-stock sizes ship in 1–2 business days. SweetNight does not deliver to Alaska, Hawaii, Puerto Rico, Guam, the US Virgin Islands or APO/FPO addresses, and remote addresses can carry a carrier surcharge.
• Returns — Unopened: free label, full refund within 30 days. Opened: free return after 30 nights, within 100. Checked 2026-11-07. An opened mattress must be in sanitary, donatable condition. The written policy calls opened returns “simple and free” but does not state the refund amount; the product-page FAQ promises free pickup and a full refund. Confirm the refund in writing before relying on it.
• Warranty — 10-year limited, original purchaser, 1-inch indentation threshold. Checked 2026-11-07. The written warranty covers a visible indentation greater than 1 in that remains after the foam recovers, plus foam cracks, cover seam defects and failure to expand. It excludes “normal softening of the foam over time.” The product-page FAQ says 1.5 in; the warranty page’s 1-inch figure is the written term.
• Firmness — Medium-plush — 39 Pa/mm. Measured data. Softer than the “medium-firm 6.5” in SweetNight’s own FAQ and in line with the plain “Medium” in its buying guide. Thicker means softer across this listing, so the 12-inch should feel firmer and the 16-inch softer.
• Pressure relief — 8.2 / 10; comfort envelopment 8.4. Measured data. Strong for the price. RTINGS found body conformity best for average and heavier sleepers, who sink far enough into the 3 in of PCM and gel foam to unload the shoulder and hip.
• Cooling — 8.4 / 10 — “Great” on first contact, “Excellent” over eight hours. Measured data. The best result in the test and the claim the brand leads with. RTINGS publishes no temperature or heat-flux figure for this unit, so the score is the evidence. SweetNight’s “8°C cooler” figure is a brand claim with no published test behind it.
• Motion isolation — 8.2 / 10. Measured data. Movement dissipates quickly and is felt mostly near its source. No coils means nothing to carry a partner’s turn across the bed.
• Response / bounce — 8.3 / 10 overall — responsiveness 8.8, bounciness 6.3. Measured data. The foam springs back faster than typical memory foam, which makes turning over easy, but there is little lift. Read it as “not stuck,” not as “bouncy.”
• Edge support — 5.7 / 10 — “sub-par”. Measured data. The weakest result. There is no reinforced perimeter, and the edges compress outward into a ramp, so sitting on the side or sleeping right at it feels unstable. SweetNight’s “enhanced edge support” line is not borne out here.
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