Great question. Poor sleep equals poor health. Moving to a 24/72-hour shift schedule and implementing later start times is the iron solution IMO. But if your department is thriving with the schedule you have than don't change a thing.

Poor sleep on duty is out of your control. But off duty, guard your sleep like you guard your nozzle. Make 7-8 hours a non-negotiable at home. I find that supplementing with magnesium glycinate or l-threonate can help a lot.

Take a daily nap. Not only should we allow napping on duty, but we should also encourage it.

Create a cool, dark, and quiet sleeping environment. Extra points for private sleeping quarters at the firehouse. Reduce blue light after dark. Use Night Shift mode on your phone and download justgetflux on computers and MDCs.