Meet the Seraphina Mini Nap Dress. The Seraphina Mini’s sophisticated older sis, the Seraphina Midi, was almost an instant sell-out last summer, so we knew we had to not only bring her back, but make. her. mini. Seraphina’s fully smocked bodice flares out into a voluminous, full mini skirt with a single ruffled-tier. Yes, it is indeed great for twirling.