I hope she's absolutely hanging this morning and that the kids are like a pack of weasels!
Having experienced this type of mother growing up I can assure you the kids will be like little mice for fear of her outburst. They won't want to upset her, Sienna particularly will be waiting for Grace to wake up in her own time to judge the kind of mood Grace will be in. She will probably have Hayden his breakfast and put the cartoons on the lowest volume. They will be walking on eggshells