How far in advance do I need to book?
You can book at any time that is available on the calendar.
For a sniff spot that is set to Request to Book, keep in mind that if a host does not confirm by one hour before your reservation time the booking is auto cancelled and you are refunded. Most hosts respond within a couple hours, but sometimes it takes longer. The sooner you submit a reservation to the time of your visit, the more likely it is that the host will not be able to confirm before the request is auto cancelled.
Note: for Request to Book sniff spots, the guest must wait to receive a confirmation from the host before they attempt to visit.