Here’s a deal on a product that my entire family is obsessed with; we wouldn’t think of traveling or attempting to rest at all without our Marpac Sound Machines! Right now, get this Marpac Sound Machine for only $31.47! That’s a savings of 30%. Dohm-SS – The Official Sound Conditioner of the National Sleep Foundation. Single Speed – Single speed motor of the Dohm-SS is the higher