If you want a more traditional experience in Mongolia especially through the night, rather than booking a room in the Hotel you can book a ger (Yurt,image on left).
The gers that will be available for booking, will be able to house a party of 5, there will be bedroom, bathrooms, a kitchen, and a living room area.
Although it is modernized, you can still experience living in a ger. The glass sliding doors in the rear of the ger will give you a full view of the starry Mongolian nights.