activity period

I sleep during the activity period.

私は活動期間に眠ります

I sleep during the busy activity period.

私は忙しい活動期間に眠ります

I sleep in the dormitory during the busy activity period.

私は忙しい活動期間に宿舎で眠ります

I sleep in the dormitory every day during the busy activity period.

私は忙しい活動期間に宿舎で毎日眠ります

I sleep only four hours in the dormitory every day during the busy activity period.

私は忙しい活動期間に宿舎で毎日四時間だけ眠ります