Sleepcoric is a coric aesthetigender relating to sleepcore. It may also be related to dreamcore; dreamycore; bedcore; bedtimecore; softcore; sleep; nice dreams; pajamas; soft blankets; and puffy pillows.
The term was coined by Tumblr user orionfluid on September 12, 2020. The flag was created by the same user on the same day.
The sleepcoric flag has seven stripes and a star in the middle. Bright magenta represents REM sleep, relaxation, and dreams. Vivid lavender represents stage 3 non-REM sleep, comfort, and peace. Vibrant lavender represents stage 2 non-REM sleep, counting sheep, and soft blankets. Blue periwinkle represents stage 1 non-REM sleep, soft pillows, and stuffed animals. Icy blue represents sleepiness, nighttime routine, and getting under the covers.