Hot Sleepers and Night Sweats: The SweetNight CoolNest Collection

Waking up overheated in the middle of the night is one of the most common complaints driving mattress shoppers to look for a change. A cooling mattress for hot sleepers aims to solve exactly that problem, and sweetnight (us) built its CoolNest collection around this concern. The lineup spans several mattresses, pillows, and bedding pieces, each constructed to pull heat away from the body through the night.

Understanding the CoolNest® Cooling System

The CoolNest system is not a single material but a combination of fabrics and foams working across different layers of a mattress. Covers, transition layers, and support foam each contribute a specific cooling function rather than relying on one gimmick. Because of that layered approach, CoolNest is positioned as a genuine cooling mattress for hot sleepers rather than a product with a single cooling feature on top.

Across the lineup, the system is described as delivering a surface that feels up to 8° cooler on the CoolNest® Memory Foam Mattress and the CoolNest® Hybrid Mattress, while the CoolNest® Ultra Memory Foam Mattress goes further, feeling up to 11° cooler thanks to its Gradient Ice Silk Cover rated at a Qmax of 0.25 for instant surface cooling. The CoolNest® Pro Memory Foam Mattress adds its own Four-Stage Cooling System built around a Gradient Cooling Ice Silk Cover and triple-perforated foam layers, and the Hybrid model pairs its cooling cover with Dynamic Coil Technology for adaptive support plus a DuoSense Pillow Top for cushioned comfort on top of the coils.

CoolNest® Memory Foam Mattress for Budget-Conscious Cooling

The CoolNest® Memory Foam Mattress uses a 3D weaving CoolNest cover paired with foam stated to be 3X more breathable than conventional foam, supporting continuous airflow through the night. This model also includes 5-Zone Ergo Support, aimed at distributing pressure differently across the shoulders, hips, and legs.

For anyone comparing a cooling mattress for hot sleepers against a standard memory foam mattress, this model represents sweetnight (us)‘s more straightforward build within the CoolNest lineup, without the added cover and foam stages found on the Pro and Ultra models. It still carries the same temperature-regulation goal as the rest of the collection, just with fewer construction layers.

CoolNest® Pro and Ultra Memory Foam Mattresses for Advanced Temperature Control

The CoolNest® Pro Memory Foam Mattress also uses PCMflux HR Foam for dynamic temperature regulation and includes contouring support described on its own product listing. Those triple perforations are designed to keep air moving continuously through the foam rather than trapping heat near the sleeper.

The CoolNest® Ultra Memory Foam Mattress layers PCMflux foam that actively balances temperature throughout the night as a sleeper shifts position, and its AirMesh foam adds what is described as 6 times the breathability of standard foam along with continuous airflow. Together, these layers make the Ultra model the most built-out option in the current catalog for anyone seeking a cooling mattress for hot sleepers.

Cooling Beyond the Mattress: CoolNest® Pillows and Bedding

Mattresses are not the only place the cooling approach gets applied. The CoolNest® Ergonomic Cooling Pillow uses CoolGlide Cooling Fabric alongside an ergonomic shape intended to support head and neck alignment. A Cooling Memory Foam Pillow 2-Pack is also available for sleepers assembling a full cooling setup across multiple pillows.

On the bedding side, the CoolNest® Cooling Comforter uses CoolGlow Cooling Fabric, rated with a Q-Max value greater than 0.4, which is described as delivering instant cool-to-the-touch comfort. A CoolNest® Cooling Sheet Set rounds out the bedding options, described as everything needed for a cooler sleep setup. sweetnight (us) extends the same temperature-focused construction from the mattress surface to the fabrics that surround a sleeper each night.

• The Gradient Ice Silk Cover on the Ultra mattress delivers instant surface cooling with a measured Qmax of 0.25.
• PCMflux foam inside the Ultra and PCMflux HR foam inside the Pro are designed to actively balance temperature throughout the night.
• AirMesh foam in the Ultra mattress is built to provide 6 times the breathability of standard foam along with continuous airflow.
• Triple-perforated foam layers in the Pro mattress keep air circulating through the foam rather than trapping heat.
• The 3D weaving CoolNest cover and 3X more breathable foam in the CoolNest Memory Foam Mattress extend the same airflow principle to a simpler build.
• CoolGlow Cooling Fabric in the CoolNest Cooling Comforter carries a Q-Max value above 0.4 for cool-to-the-touch bedding.

Building a Complete Cooling Sleep Setup with SweetNight Bundles

Beyond individual products, sweetnight (us) also groups items into bundles for shoppers furnishing a full bedroom. The Adjustable Luxury Bundle pairs the CoolNest® Ultra Memory Foam Mattress with the SweetNight Adjustable Base, while the Adjustable Upgrade Bundle applies that same base to the CoolNest® Memory Foam Mattress, so positioning flexibility is available at either end of the mattress lineup.

A separate Cooling Bundle pairs a cooling mattress with other bedroom pieces for a more complete temperature-focused setup, while the Best Value Bundle focuses on combining a mattress and bed frame without the adjustable base. Each bundle configuration gives shoppers a way to combine mattress, base, and accessories according to how much of the cooling system is wanted in one purchase.

The 100-Night Sleep Trial and 10-Year Warranty Protection

Every mattress purchased from sweetnight (us) includes a 100-night sleep trial, and the policy asks that it be used for at least 30 nights before judging comfort, a window that covers the full CoolNest range from the Memory Foam Mattress to the Ultra. If a sleeper remains unsatisfied after that period, the return is handled free of charge.

On top of the trial, mattresses are backed by a 10-year limited warranty covering manufacturing defects, such as sagging of more than 1 inch. Comfort preference itself is not covered under that warranty. Shipping for mattresses, bedding, and bed frames is free within the U.S. via standard FedEx, typically arriving in 3 to 5 business days.

Between the layered cooling construction and the trial and warranty terms, the CoolNest collection lays out a documented set of options for anyone weighing a cooling mattress for hot sleepers.