Kids sleep early if they don't have a nap

My kids didn't take a nap today. I love it when they don't take a nap in the daytime because they sleep so early in the night time. Jodel is already sleeping right now it's not even 8 yet. Joey and his Dad watches TV downstairs and he might be sleeping by now. I am a little bit sleepy myself but before I go to sleep I am here browsing and checking if I have opps lol..