The brainstem controls things like breathing, hunger and automatic body survival functions so its safe to assume that it controls sleep.
hypothalamus
The gustatory cortex of the brain is located in the parietal lobe (which deals w/ many senses... keep in mind this part of the brain contains the somato-sensory cortex on the post-central gyrus and this lobe of the brain deals w/ integrating senses).
The prefrontal cortex (PFC) and both of its major divisions: the lateral and upper most part (dorsolateral prefrontal cortex) and the medial and lower most part (ventromedial). Each is specialised by virtue of its connections with other brain regions, but collectively they integrate and abstract information related to higher-order sensory processing, performance monitoring, motor control, as well as emotion and memory.
The frontal lobe
It is the part of the brain that most people picture when they hear the word "brain." It consists of the 4 lobes (frontal, parietal, temporal, and occipital). These lobes have the following functions: Frontal-emotions, feelings, basically your personality; Parietal-deals with a lot of the motor functions; Temporal-deals with sounds and hearing; Occipital-sight. Hope this was helpful.
The part of the brain responsible for regulating sleep is the hypothalamus.
gyrus
You brain cortex is the part of your brain that deals with emotions, guilt, and fear. It also deals with reasoning and helps suppress base instinct.
cerebral cortex
hypothalamus
The pons is the part of the brain that regulates body movement, attention, sleep, and alertness. The pons is the part of the brainstem that links the medulla oblongata and the thalamus.
the frontal lobe
Cerebrum..The largest, and most complicated part of the brain
Limbic system
hypothalamus
The Cerebrum is the most essential part of the human brain.
Suprachiasmatic nucleus of the hypothalamus