So, I just booked a N/S redeye from PUQ to SCL. Flight departs at 1:05am and lands at 4:25am in Santiago. My plan for the morning was to go to a hotel and just crash.

Assuming I was going to arrive around 6am, would a hotel (probably SPG brand) check me in that early, or would I have to book the night before? I'm assuming to guarantee the best chance of a room, I'd have to arrange with the hotel beforehand, regardless.

Anyone done this? Thanks.