U.S. patent application 20200260882 (applicant Dreamwell Ltd., Atlanta, Ga.):
"A mattress assembly comprising: at least one layer proximate to a sleeping surface of the mattress assembly spanning at least a portion of the length and/or width of the sleeping surface comprising: a two-ply preformed capsulate sheet comprising a plurality of cells; and a phase change material within at least a portion of the plurality of cells."
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