The word sleepwalking is playable in Words With Friends™, no blanks required. Because it is longer than 7 letters, you would have to play off an existing word or do it in several moves.
Words With Friends™ Letter Score: 27
Highest Scoring Words With Friends™ Plays In The Letters sleepwalking
:
Seven Letter Word Alert: (53 words)
alkenes, alleges, alpeens, alpines, apelike, eelskin, ellipse, gaslike, genials, inkwell, keeling, keeping, kelpies, kelping, lapsing, lapwing, lawlike, leaking, leaping, leasing, lineage, linkage, palling, peaking, pealing, peeking, peeling, peglike, penlike, pillage, pingles, sapling, sawlike, sealing, seeking, seeping, selling, sinkage, skewing, slewing, spangle, spaniel, spelean, spewing, spiegel, walking, walkins, walling, wangles, weakens, weeping, welling, winkles