Roleplay here.

All the dens are old badger dens in the sandy ground. 

There is one den for Leader and Deputy, but Delta can sleep in there if they are a warrior, since it's big enough. It leads to another den that is much larger, and is used for meetings with the council and high-ranks.

One den is used for the medicine cats, and has a small cavern for sick cats and another smaller cavern for all the herbs. Has a small pool in the corner full of moss.

There's one den for the council, since they are often busy and cannot be disturbed. If a warrior, the Delta may sleep in here as well.

There's another den for the Ginger, Brown, and Golden pelts. It is quite large, and is very comfortable.

One smallish den is reserved entirely for the Night Patrollers, so they are allowed to sleep during the day. It is almost always pitch black inside. Night Patrollers apprentices sleep in the same den.

Tortoispelts, Dappled Pelts, Patterned pelts all sleep in one large den, connected to the Ginger, brown, and golden pelts den, as well as the apprentice's den through a small tunnel. 

Queens sleep with their kits in a very dark den as well, it is also secluded yet protected, as it is surrounded by the Leader/Deputy den and Ginger, Brown, Golden pelts den. 

Apprentices den is for all of the apprentices, although cats who are training together often sleep in the four dips, and Night Patrollers apprentices are to sleep in the Night Patrollers den.

The elders den is located beside the Night Patrollers den. Highly comfortable.