If you have problems falling asleep, try the Marpac Serious Sleep Tan Natural Dohm White Noise Machine. It consists of a compact adjustable acoustic housing surrounding an electric motor with a unique asymmetrical fan. This design allows the Marpac Dohm sound machine to create the soothing sound of rushing air without the disturbance of actual moving air. It is especially suitable if you have a partner who snores or live in a loud urban area.