Prebooking a late check out is not something that can be organised. This is because the hotels will need to get the rooms ready for the next guest for when check in opens.
If you want to arrange this, then we would recommend speaking to reception upon check in to see if you can pay locally to keep the room for longer, or if they have specific rooms for this service.
The vast majority of hotels will hold onto your bags until you leave for the airport, if you want them to. This means you can check out and leave your bags behind, so you can make the most of your holiday time before moving on.