Argos currently have offers on some of their ranges of Silent Night Matresses with up to 50% off, namely: Hampshire Deep Quilt, Rebecca Cushion Top & Hampshire ranges.
eg: Silentnight Hampshire Deep Quilt King Size Mattress reduced from £389.99 to £194.99.
See link for more information.
Don't forget Quidco and the vouchers that Argos are giving for the next few days - £10 with £100 spend!!