Tranquilized dinos should randomly wake up and be agitated. Currently there is no penalty for putting them to sleep and leaving them asleep while dealing with some crisis. A crisis should be chaos and panic and you should have to work hard to solve it. Not put dinos to sleep and wait it out.
2 cents worth of wondering.
Cheers
Actually, the first few Let's plays I watched about JWE before deciding to buy it, I actually thought there was a timer for Tranquilized dinosaurs to wake up.
I think the devs should add a timer (randomly) depending on the species along with these:
1. A research item for stronger sedatives which will increase sleep time.
2. A research item for larger darts to hold more sedatives decreasing shots required.
3. A research item for stronger blasts to pierce the skin making sedative reaction faster.