It sounds like you only have one AC unit for your whole house. Before we bought a home in Florida, one of the vacation rental homes we rented had one AC unit for the home, plus a mini split in the master bedroom and a mini split for the enclosed lani. I thought that was a very smart idea! That way, you can have the temperature lower in the master bedroom at night, instead of the whole house. Another benefit is when, not if, the main AC fails, you have back up AC for your house. You could run the split units, and use fans to blow the cool air around the house. Then you could limp by until the main AC system was repaired or replaced.
The Florida house we ended up buying has a heat pump AC unit for the main house and a second heat pump unit for the master bedroom suite area. That’s also a smart way to have a lower sleeping temperature in the master bedroom and have back up AC if or when one of the AC systems fail.
If you just have one heat pump AC unit for the whole house, you should consider adding a mini split for your master bedroom, so that you could have a lower sleeping temperature and have backup AC in your home. Then you could limp by with the backup AC, since open windows and fans don’t cut it in Florida in the long summertime!
In Minnesota, I bought six portable electric space heaters for backup heat, in case my furnace quit working. I did that after the second emergency repair call in the middle of the winter.
Having a backup AC system is very important in Florida!
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