Known as Saint Sorney's Bed, it was not a bed in any conventional sense, but rather a low, roofed cell of the kind associated with early Christian penitential practice, where a saint or hermit might retreat for prayer, fasting, or physical mortification. Such structures are rare survivals, and this one had endured long enough to be carefully measured and described before disappearing entirely.

When the antiquarian Fahey wrote about it in 1893, he found a structure roughly six feet long and four feet wide externally, with a stone roof he described as still near perfect. He could not determine its height because earth and rubble had accumulated so thickly around its base. When it was visited again in 1982, it had become a rectangular mass of stone, about 2.6 metres long, two metres wide, and 1.7 metres high, completely smothered in ivy and aligned north to south. The association with Saint Sorney, a figure connected to this part of south Galway, gave the monument its name and presumably its local significance. Drumacoo itself is a monastic site of some antiquity, and the small cell would have sat within that broader sacred landscape, just beside the church it had outlasted by so many centuries. At some point after 1982, according to local accounts, it was cleared away during works in the graveyard, leaving no physical trace.