Cocoon By Sealy Besides therapy and a moisturizer-packed skincare routine, a mattress is arguably one the most important investments in self-care a person can make. Few things compare to the joy of getting a good night's sleep and without a supportive mattress, achieving this is unlikely. I recently had a chance to test Cocoon by Sealy's Chill Memory Foam Mattress and as a hot sleeper prone to spurts of back pain, I've found that my sleep has been transformed in ways I didn't know possible. Instead of having to roll around to find a spot that feels good until eventually falling asleep when I reach exhaustion, I'm now getting into bed and falling asleep within minutes.