Acquired during the deepest stages of a much-needed restful night; when you're so sleep, you sleep through alarms, often with mouth ajar, face planted against the sheets.
I tried to wake you up in time for the bus but you were in a deep ugly sleep. I couldn't bring myself to interrupt
by Dante_ck October 19, 2015
my girlfriend attempted a beauty sleep yesterday but took an ugly sleep instead, she woke up looking like a confused killer whale
by Pardible January 7, 2016
the opposite of beauty sleep
by Nail Parrot Himself September 30, 2020