I had a layocer from midnight to noon the next day and tried this hotel: most conveniently the hotel is located in the transit area of Suvarnabhumi making it perect for a prolonged layover. The rooms are decorated in a seventies style and wear and tear is obvious.
Just ok to get some hours of sleep and a shower before your next flight. Staff is friendly and procedures are very speditive.
The unique location might justify the price. At least you can book the room by the hour.
Stayed June 2014, travelled on business