sleepless is a valid English word

Scrabble validity: valid ( international - Sowpods, US - Twl06 )
iScramble validity: valid
QuickWords validity: valid

Meanings

Adjective (COMPARABLE)

Characterized by an absence of sleep.
• I spent a sleepless night worrying about the exams.

sleepless is a Scrabble valid word

sleepless

• International English (Sowpods) - The word is valid in Scrabble ✔
• US English (TWL06) - The word is valid in Scrabble ✔
• 00 points

sleepless is an iScramble, QuickWords valid word

sleepless

• The word is valid in iScramble ✔
• The word is valid in QuickWords ✔
• 00 points

Same letters words (Anagrams)

• SPEELLESS

Same letters plus one

• SPLEENLESS

Same letters minus one

• none