Hello Quartz-1, welcome to the 'cabin'.
That is very considerate of you to think of the cabin crew and I many of them visit this forum. Whilst timing may not be entirely of your own choice, look for times when the aircraft is in the cruise and some hours before landing (if applicable). Of course, if there is a need for the flight crew to switch on the seat belt sign, you should return to your seat. If you do not and the aircraft experiences sudden and bad turbulence - then you may have no claim for insurance.
Hopefully, that will not happen.