So here's a easy way to earn dns that I just discovered. Once a month passes by the old month's timer boxes only contains Doctors Note and doesn't have spinner items or avatars. So, collect spinner boxes (monthly boxes) and open them the next month when there's only the doc note present inside.
tbh i’ll probably unlock this when i go to bed if i dont have labyrinth boxes. i usually unlock those when i go to bed instead of hunt boxes. and just unlock hunt boxes during the day. its more efficient for me personally.