The nSyb-GAL4- or R23E10-GAL4 -driven expression of AOX in hemizygous sni 1 mutant males fully or partially restores wild-type sleep (two-way repeated-measures ANOVA with Holm–Šídák test; sample sizes in c ). The sleep profiles of sni 1 mutants with pan-neuronal expression of AOX differ from those of sni 1 mutants ( P < 0.0001) but not of wild-type flies ( P = 0.0589), whereas the sleep profiles of sni 1 mutants with dFBN expression of AOX differ from those of both sni 1 mutants ( P < 0.0001) and wild-type flies ( P = 0.0007).