Can anyone identify this horror movie?

The other day I got to thinking about a horror movie that I watched, in the 70s or 80s. It may actually have been a TV-movie, but I’m not completely sure. The plot goes like this:

A couple and their children are out driving, and something happens to their vehicle. They manage to get all the kids out but one, who dies when the car explodes.
She comes back as a vengeful ghost, and eliminates all the family members, one by one. (Throughout most of the movie, I think the youngest child can see her, but no one else can.) The last scene finally has her appear to her mother, who screams in horror.

Does anyone remember this movie? Any info would be appreciated!

“Don’t Go to Sleep”? Don't Go to Sleep (TV Movie 1982) - IMDb

Yes, I believe that’s it! Thanks!