So I really like the tea and sleep concept. I think what could make this game stand out a little bit more is creating pixel objects that give off the players being in a cozy room that the avatar has. For example, in the first room you could have a bed, sofa, tv, pet, kitchen area, etc. Something that will give a little more detail than just boxes.
I really like the maze too. The only thing I will say for that is just to make it a bit more advance. Give the player a little bit more of a challenge. You could even add like little sleep depriving monsters that the avatar should avoid while getting the tea so they won't affect their sleep.