Because everyone deserves to know, this is how Lights Out would have ended:
They all go to sleep and wake up, outlet isnt dead but he isnt there, hat grows suspicious of nightlight, then later she find outlets dead body in a room she was specifically told not to go into, then she gets knocked out. She wakes up outside in nightlights car, nightlight seems to be driving to hats house hat questions her and nightlight acts like nothing happened, saying hat fell asleep for a long time and she decided to take her home. Hat questioned the deaths and nightlight denied it. Then they end up at hats house. Nightlight gives her a kiss on the cheek and they stand in the rain for a moment, then hug. And thats how it ends. Also yes, all the deaths did happen, nightlight is just a little gaslighter