SIESTA is a playable word

siesta Scrabble® Dictionary

noun
pl. siestas
an afternoon nap or rest
65 Playable Words can be made from "SIESTA"
   2-Letter Words (12 found)
   3-Letter Words (23 found)
   4-Letter Words (19 found)
   5-Letter Words (9 found)
   6-Letter Words (2 found)