tatpi -ta'i- gismu

x₁ is tired/fatigued by effort/situation x₂ (event); x₁ needs/wants rest.

In notes:

cikna: (adjective:) x₁ is awake/alert/conscious.
sipna: x₁ is asleep (adjective); x₁ sleeps/is sleeping.
surla: x₁ relaxes/rests/is at ease in/by doing/being x₂ (activity).
a'e: attitudinal: alertness - exhaustion.
kamtatpi: k₁ is the fatigue of t₁ in being/doing t₂ (event).
sipta'i: t₁=s₁ is sleepy; t₁=s₁ needs/wants sleep.
sipydji: d₁=s₁ is drowsy/sleepy.
tairva'u: v₁=t₁ pants because of tiring effort/situation t₂ (event).
tolsurla: s₁ expends effort/is actively/effortfully involved in doing/being s₂ (activity)