Optogenetic activation (using Cnoc\ChR1::Csub\ChRCsChrimson.20xUAS.FRT.Venus with Scer\FLP1L.8xlexAop and 627 nm (red) light) of cells expressing both Scer\GAL4GMR78B07 and Ecol\lexAGMR76B06 in adults significantly increases sleep, compared to controls.