Originally Posted by
Davvidd
Very Interesting because another member here recommended JB Marriott to me as he himself got the 24 hours there from the time he checked in and I did speak with them and they told me on the phone it was 24 hours. Initially on the email from reservation they said the same thing as you said but when I called to the hotel itself in BKK, they told me it is 24 hours.
I had actually emailed the hotel(s) directly to ask before I made a reservation so clearly it is a YMMV.