http://buganviliasclub.com/accommodations.php is a link to the types of units they have. You can see the floor plans.
If you upgrade to a 2-bedroom unit, you would be able to sleep 6 people. Some are arranged a little differently and have a smaller deck than Master Suite Plus floor plan shown on the site is in Building D that is oceanfront.
The Junior Suites have 1 bedroom with a king bed, 1 bathroom and then the sofas are basically 2 twin beds with bolster pillows. These are in Building D. You do have an ocean view, just not a balcony.
The Presidential Suites have 1 bedroom and then a Murphy bed in the living room area. these have 2 bathrooms.The sofa is too narrow to be a bed for kids. These are in Tower A have balconies looking at the ocean. Generally the 1 bedroom units can have 4 people.
Some of the Newer ones in Tower A are called Deluxe Suites, but they also have just a king bed and a pull-out sofa. I would be surprised if you got one of these.
There are also some renovated units in Building D called Grand Suites. I have only seen the 3 bedroom ones that used to be 2 of the 1 bedroom Junior Suites - so no balconies.
Thank you Pittle; very helpful. I haven't asked yet but I assume SFX would be unable to tell you which particular kind of 1 bedroom suite you will get. I will see what they say.