Moral keeps decreasing despite sleeping, eating and no injuries

[Darejian]

My morale keeps going down, despite I live on my base, sleep in a bed in a house, I am not injured, eat berries and cooked meat. What can be the reason for this?

UPD: Solution: to increase moral sleep or sit for a LONG time

[Agent707]

You are constantly using crafting stations? Moral only raises hanging at your base, when you're idle.

[Darejian]

I do use crafting stations often. So far I discovered this:
- if I sit on the Grass Mat for a long time (like 1 min of real time or longer), my moral increases a bit. I can see 3 icons at the left bottom corner of the screen showing +2 from time to time while I am sitting.
- If I go to sleep and stay asleep for a long time (> 1 min of real time), my moral increases, more than while I am sitting. But there is no clock on the screen while asleep, so it is very inconvenient to wait like that.

To summarize I can increase moral by sleeping after all. The sleeping process is not intuitive though.