It'd be interesting if time was an important element, and each short rest took 1 hour. If nearly every quest had an implicit time requirement, time would become part of the "action" economy, and while we -could- short rest whenever, it might be impossible if we needed to rescue someone by the end of the day or remove a tadpole by the end of three days, for example. Then long rests could only happen once per day - and maybe 8 hours would pass per long rest regardless of when it began, night or day.

The game would have to be designed from the beginning incorporating time as an element of the economy. Wishful thinking. Fun how it is, though.

I think 3 short rests is worth testing. One long rest per long play period.