Casper The Cloud One Mattress

While the Cloud One is optimized for back and stomach sleepers, side sleepers may find it slightly too firm. Because it is designed with a medium-firm feel, side sleepers often require more sinkage at the shoulders and hips than this specific foam construction provides.

No, the Casper Cloud One is constructed without fiberglass. It uses alternative fire-retardant materials to ensure safety and peace of mind.

This mattress uses open-cell foam layers that are ventilated to promote airflow. This design allows heat to escape through the mattress rather than trapping it against your body, which is a common issue with traditional memory foam.

You can use this mattress on any flat, sturdy surface, such as a platform bed, a slatted frame with slats no more than 4 inches apart, or an adjustable base. Avoid using it directly on the floor, as this can restrict airflow and lead to moisture buildup.

While the mattress is ready to sleep on almost immediately, it can take up to 24 to 48 hours to fully expand and reach its intended firmness. You may notice a slight initial scent as the foam settles, which will dissipate quickly with proper ventilation.