Transit visa 24 hours

The first and the most important detail is that your itinerary is eligible for 24 hour visa free transit and you do not need any kind of visa.

To be allowed to exit the airport you will approach 24/144 hour visa free transit counter upon your landing from Thailand. At the counter you will apply, absolutely free of any charge, for a temporary entry permit. This permit allows you to exit the airport and to enjoy the sightseeing. Also, you can have an overnight in the hotel outside the airport. It would be quite useful in applying for this permit to have already booked accommodation and a confirmation of this fact when you apply for a permit. I hope you will get a permit because your layover is really a very long one.