mate·las·sé 
(mätlə-sā′)
(mätlə-sā′)n.
A sturdy, textured, usually cotton fabric having a puckered or quilted appearance, often used in bedding and upholstery.
[French, from past participle of matelasser, to pad, quilt, from matelas, mattress, cushion, from Old French materas; see MATTRESS.]