Вложенные ListView.builder

Не отображаются вложенные списки:

body: SafeArea(
    child: Expanded(
      child: ListView.builder(
        itemCount: _days.length,
        itemBuilder: (context, int page) {
          return Expanded(
            child: ListView.builder(
              itemCount: _days[page].lessons.length,
              itemBuilder: (context, index) {
                return LessonTile(
                  lesson: _days[page].lessons[index],
                  day: _days[page],
                );
              },
            ),
          );
        },
      ),
    ),
  ),

Виджет LessonTile:

class LessonTile extends StatelessWidget {
final Lesson lesson;
final Day day;

LessonTile({required this.lesson, required this.day});

@override
Widget build(BuildContext context) {
  return Padding(
    padding: const EdgeInsets.all(10.0),
    child: Container(
      width: MediaQuery.of(context).size.width - 50,
      decoration: BoxDecoration(
          borderRadius: const BorderRadius.all(Radius.circular(24)),
          border: Border.all(color: const_colors.grey, width: 1)),
      child: Column(
      crossAxisAlignment: CrossAxisAlignment.start,
      children: [
        Text(day.getDate()),
        ListTile(
          onTap: () {},
          subtitle: Text(lesson.getAdress()),
          title: Text(
            lesson.getTitle(),
            textAlign: TextAlign.center,
            style: const TextStyle(
                fontFamily: 'Gilroy',
                fontWeight: FontWeight.bold,
                fontSize: 17,
                color: const_colors.color4),
          ),
        ),
      ],
    ),
  ),
);

} }