Thai hotels are designed and built for Thai physiques, budgets and expectations; so expect to make some adjustments if you stay at one of these establishments.
And don't expect much english to be understood.
Generally, think
- Open lobby
- Small and clean yet stark rooms
- Tile, wood or concrete floors
- Twin size beds
- Mattress - thick pad on a platform, some exceedingly firm
- Pillows will usually be firm.
The bathroom may not have soap and shampoo provided, especially shampoo. But they can usually be purchased in the lobby. Towels are commonly provided.
Restaurants serve Thai food predominantly or exclusively. The menu may have no english language explanations of the Thai. Don't be too shy to point to available photos or even indicate that the dish someone else is having looks appetizing.
Stairs rather than an elevator/lift are common in a hotel of 4 to 5 floors. And Thai stairs are generally smaller than the western foot and will be considerably steeper than western flights.