Deep Sleep (hotel)

Deep Sleep is an underground hotel^[a] located in Wales.^[2] It is built 1,375 feet (419 m) below ground level, inside an abandoned mine in Cwmorthin quarry in Snowdonia (Eryri) national park.^[3] It was opened in April 2023 and claims themselves as the deepest accommodation in the world. The mine where the hotel is located was abandoned and left to rot in the mid-twentieth century.^[4]

Deep Sleep
General information
Type	Overnight stay accommodation
Town or city	Tanygrisiau, Gwynedd
Country	Wales
Coordinates	52.99°N 3.96°W / 52.99; -3.96
Opened	April 2023
Owner	Go Below Underground Adventures
Other information
Number of rooms	4
Website
www.go-below.co.uk/deep-sleep.asp
The coordinates are not precise.

Overview

To reach the accommodation, guests have to trek with a trip guide through a Victorian slate mine. Helmet, light, harness and boots are provided to the guests before the journey. The hotel has to be reached through a challenging path through the mine, which operated from 1810 to 1939. The hotel includes four private twin-bed cabins and a romantic grotto with a double bed.^[5]

Notes

1. The operator does not describe it as a hotel, but a remote-campsite overnight stay.^[1]