The Sleeper Rapid is a stretch of rapids in Gila County, Arizona, in the Sonoran Basin and Range region. It lies about 19.2 miles north of Claypool and roughly 55.8 miles northeast of San Tan Valley as the crow flies.
The Sonoran Basin and Range is hot desert of saguaro, palo verde and creosote with rugged, rocky ranges. Waterfalls are rare and seasonal, in canyons after winter rain or summer monsoon.
Gila County holds 6 recorded rapids, and several are close by. Corkscrew Rapid, is under a mile away. Quartzite Rapid, is under a mile away. The Maze Rapid, is about 1.1 miles away.
The Sleeper Rapid is located at 33.6797° N, 110.7584° W. The listing is based on the USGS Geographic Names Information System, one of the sources compiled by the U.S. Geological Survey in its inventory of waterfalls and rapids of the conterminous United States. The position was verified on aerial imagery. Details on trails, parking and access have not been documented for this rapid yet.