Sleepshirt is valid Scrabble Word

Is sleepshirt a scrabble word?
Official Scrabble Players Dictionary NO
Official Tournament and Club Word List YES
Collins Scrabble Words NO
Is sleepshirt valid Words with Friends?
Words with Friends NO

Definitions for SLEEPSHIRT in dictionary:

Words that contain SLEEPSHIRT

sleepshirts16
Find what other words can be done using letters: "sleepshirt"
https://scrabble-word.com/finder/sleepshirt
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