A full night’s sleep owes a great deal to the mattress. This flat pad or matting is unremarkably set on the flooring or on top of a bed (or metal spring foundation). Historically, a salmagundi of natural stuffs were ill as fill (straw or feathers) for the mattress. But today, mattresses commonly have an innerspring core or made stuffs like latex, viscoelastic or polyurethan.

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