A bed apparatus has a housing with an intake duct, a closeable vent, and an exhaust port. The intake duct is configured to intake air from an area outside of a bed. The closeable vent is configured to selectively supply the air to the bed. The exhaust port is configured to selectively return the air to the area outside of the bed. At least one electric fan is disposed within the housing between the closeable vent and the intake duct. In operation, the bed apparatus can be switched from a sound-enrichment-only function, to a sound-enrichment-and-bed-air-delivery function, simply by closing and opening the vent, respectively. The bed apparatus may further include a clamp for securing a bed cover above the housing.