The rooms are very basic in most places. In some very popular areas like Annapurna and Everest high-end rooms with attach bath and flush toilet and ruining hot/ cold water have come out in the recent years. However these kinds of lodges are very few and not available in all places on the trek route.
Basic room’s sizes are on an average of 8 feet by 8 to 10 feet. They have twin cots with mattress and pillows. Most lodges provide blankets, however for hygienic regions it’s advisable to carry a good sleeping bag of your own. The walls are pretty thin and noises carry. Earplugs are recommended to be carried.
In more remote areas one may only get dormitories for accommodations and dinning and sleeping arrangements may be in the same common area.