SIESTAS is a playable word

siesta Scrabble® Dictionary

noun
pl. siestas
an afternoon nap or rest
75 Playable Words can be made from "SIESTAS"
   2-Letter Words (12 found)
   3-Letter Words (23 found)
   5-Letter Words (11 found)
   6-Letter Words (7 found)
   7-Letter Words (2 found)