Abstract: According to one embodiment, an apparatus for coupling an oral appliance to a gas delivery device includes a post, a swivel, and first and second opposing clamps. The post includes a base configured to couple to the oral appliance; a first arm extending from the base and defining a channel extending along a portion of the first arm; and a second arm extending from the base, extending substantially parallel to the first arm, the second arm defining a channel extending along a portion of the second arm. The swivel is substantially spherical and is configured to position the gas delivery device. The first clamp is configured to engage and slide along the channel defined by the first arm and the second clamp is configured to engage and slide along the channel defined by the second arm. The first and second opposing clamps are together configured to position and secure the location and orientation of the swivel relative to the post.