Miss Sleep is a 20-year-old teacher at an all-girls pyjama boarding school known as 'PJ Girls Academy'. Her hair is blonde and reaches down to her shoulders. She always wears a blue long-sleeved pyjama shirt with a picture of a sleeping kitten in the center, a pair of purple long-sleeved pyjama bottoms with stars all over them, a pair of pink sleeping mittens, a pair of white bunny slippers and a light pink sleeping mask. She has five 6-year-old students named Tessa, Rachel, Vida, Queenie and Minerva and they all sleep in a dorm room together. The academy requires all students and staff to wear their pyjamas 24/7, even when not in bed! Miss Sleep is a motherly figure to her five students. She always gives them lots of warmth, care, love and affection, and she always tucks them in their beds every night.