Product History
The Dohm DS originated from a design created by the Marpac founder to address personal sleep difficulties. This mechanical approach to sound conditioning became a staple in the industry. While the product was previously marketed under the SleepMate or Sound Screen names, it was eventually rebranded as the Dohm DS.
This specific model, the 980A, functioned as a dual-speed device. It was built using ABS plastic and designed for durability in both home and travel settings. The machine utilized an internal motor to produce a consistent, smooth sound of rushing air, which is commonly identified as white noise.
Mechanical Operation
Unlike digital alternatives, this device relied on electro-mechanical components to generate sound. Users adjusted the volume and tone by rotating the cap and collar of the housing. This physical interaction allowed for manual control over the acoustic output without the need for electronic menus or digital interfaces.
The dual-speed motor provided two distinct levels of intensity. This mechanical design was intended to mask external environmental sounds, such as those found in apartments or offices. The lightweight construction made it a portable option for individuals who required consistent sound during travel or shifts.
Technical Specifications
The unit measured approximately 5.75 inches in base diameter and stood 3.25 inches high. It weighed 1.5 pounds and was powered by standard household current via an 8-foot cord. The housing was made of fog-white ABS plastic, which was intended to be both lightweight and sturdy for long-term use.
Safety standards for the device included UL listing for use in the United States and Canada. Although this specific model is no longer available through this shop, the mechanical principles of the Dohm series remain a notable part of the history of sound conditioning hardware.
Archive Status
This shop closed in 2014, and all inventory, including the Marpac Dohm DS, has been discontinued. The information provided here serves as a historical record for those researching the specifications or the history of the SleepMate 980A. No current stock or active sales exist.
The documentation of these discontinued items is maintained for archival purposes only. For information regarding the current status of the manufacturer or newer iterations of their technology, please consult the official manufacturer website.
Questions
Is the Marpac Dohm DS still available for purchase here?
No. This shop is closed, and all products listed in the archive are discontinued.
What was the previous name for this model?
The Dohm DS was formerly known as the SleepMate 980A.
Rebuilt from the archive of soundtherapyworld.com. Last reviewed 2026-10-27.