Casper Mattress King Size - Light Grey King Memory Foam Bed with Cooling Technology, Pressure Relief, and Motion Isolation

Product Overview

This Casper Mattress features a three-layer construction using memory foam and polyurethane foam materials. The top layer utilizes Casper Signature Foam designed to conform to the body and absorb pressure. Beneath this is a layer with AirScape Technology, featuring thousands of perforations intended to promote airflow and reduce heat retention. The base layer incorporates ProSupport Foam to prevent excessive sinking and sagging over time. The mattress cover is made from a polyester blend that is spot or wipe clean only. Available in multiple sizes, the King version measures 80"L × 76"W × 10"Th. It has a maximum weight capacity of 500 pounds and is not foldable or customizable. The medium firmness level aims to suit a range of sleep positions while providing pressure relief. Some reviewers mention the mattress works well on adjustable bed frames, though one noted quirks with the original model on such frames. Delivery is typically straightforward with easy setup according to user feedback.

Design & Build

The Casper Mattress features a streamlined three-layer construction focused on comfort and support. The top comfort layer utilizes Casper Signature Foam, a proprietary memory foam designed to conform closely to the body while providing pressure relief. This layer aims to cradle pressure points like shoulders and hips without creating the stuck feeling associated with some traditional memory foams. Beneath this lies the AirScape layer featuring thousands of small perforations intended to promote airflow and heat dissipation. This technology addresses one of the common complaints about memory foam mattresses - heat retention. The base layer consists of ProSupport Foam that provides foundational support and prevents the mattress from sagging over time. This three-layer approach creates what Casper describes as a balanced feel that combines contouring comfort with responsive support.

The mattress cover is constructed from a polyester blend fabric that is designed to be durable while allowing breathability. Care instructions specify spot or wipe cleaning only, making maintenance straightforward. The entire mattress measures 10 inches in thickness, providing substantial cushioning without excessive height that might make bed-making difficult. The King size version offers ample sleeping space at 80 inches long by 76 inches wide. The mattress arrives compressed in a box for easier delivery and handling, then expands to full size once unpacked. Reviewers mention the setup process is generally easy, with the mattress quickly taking shape after being placed on a bed frame. The medium firmness level aims to accommodate various sleeping positions while providing sufficient support for proper spinal alignment.

Performance

The Casper Mattress delivers a balanced sleep experience that combines pressure relief with temperature regulation. The AirScape Technology appears effective according to manufacturer claims, with the perforated layer helping to dissipate body heat and moisture. This addresses one of the traditional drawbacks of memory foam while maintaining the contouring benefits. The medium firmness provides adequate support for most sleepers, though some reviewers note it works particularly well for individuals under 150 pounds. Heavier users around 250 pounds have reported the mattress might not feel firm enough for optimal support. The responsive foam layers allow for relatively easy movement and position changes during sleep, reducing the stuck feeling sometimes associated with memory foam. The pressure relief capabilities help distribute body weight evenly, which can reduce pressure points and potentially improve sleep quality.

Durability appears solid with the ProSupport Foam base designed to prevent sagging over time. The maximum weight capacity of 500 pounds suggests robust construction. Some reviewers mention using the mattress on adjustable bed frames with generally good results, though one noted their original Casper model had some quirks on such frames. The mattress maintains its shape well according to user feedback, with minimal off-gassing reported after initial unpacking. The cover material resists stains reasonably well given the spot-clean-only care instructions. While most users report comfortable sleep, there is some variability in firmness perception based on individual weight and sleeping position. The mattress seems to work particularly well for side and back sleepers who benefit from the pressure relief while still receiving adequate support for spinal alignment.