So how do you define a "sleep aboard" ?

Any time you sleep on-board while tied up at a dock? Good luck with that.

SunSail will not have this issue. They do no have a sleep aboard policy. All charters start at 6pm and You are required to book an extra day if you want to board on the day you arrive.

They should also tax the boats with air conditioning. Never had all these "sleep aboards" before all the boats got shore AC.