When I rotate to nights, I try to nap in the afternoon before my shift. Stay up until midnight or 1am, sleep until 1 hour prior to shift change if I’m lucky (usually awake at sunrise). Our expectation is skids up in 10 minutes at night and I usually make that if I’m not waiting on med crew. Usually need another minute or two if departing IFR to receive clearance.
This works ok for me. If I fly all night it sucks but the afternoon nap will carry me through shift change. I rarely sleep more than 4-5 hours at night but that sets me up for a nap so it’s all good.
I keep the helicopter fueled appropriately for our coverage area, radios set and ready for the ifr departure procedure.
The guys that take 20 minutes to lift (especially VFR) blow my mind. Get a different job because you make everyone else look bad and drive down the call volumes. Be professionals, it’s only a 12 hour shift. If you can’t wake up and go, stay up.