cute sleep mask in groovy retro style of 60s 70s. world sleep day concept.

sleep mask cartoon character world globe groovy retro cute graphic international poster 1970 1960 nostalgia mascot day night dream vintage pillow quote abstract phrase isolated relaxing comic rest element awareness bed energy funny insomnia disease fatigue protect slumber conservation wake tiredness childish colourful font greeting cognition health simple smiling style 60s 70s concept flat vector cards posters print 70s concept