East Sleeper is on the Appalachian Mountain Club's list of the "Hundred Highest" peaks in New England. West Sleeper is actually higher, but the ridge connecting it to the peaks of Mount Tripyramid is high enough to deny it the 200 feet (61 m) of topographic prominence to qualify for the list. A maintained trail passes close by the summit, from which an obvious spur path leads to the top.
The peaks are named in honor of Katherine "Kate" Sleeper (1862–1949), a local innkeeper who was heavily involved in trail development in the area:[1][2]
Kate Sleeper Walden, born in 1862. In 1890, as a single woman, she purchased the old Caleb Brown farm, which she renovated and then opened to the public as the Wonalancet Farm in 1892 to immediate success. Married Arthur Walden. Initiated the Wonalancet Chapel restoration, the forming of the Wonalancet Out Door Club, the introduction of the telephone to the area, served as the first postmaster of the Wonalancet Post Office. Advocated the preservation of great tracts of land that became part of the White Mountain National Forest. She died in 1949.[3]
There is more on Sleeper in the book on the White Mountains "Forest and Crag" by Laura and Guy Waterman.[4]