Tents are designed for double occupancy. If you bring your own sleeping bag the rating should be to -10. Food is simple and nutritious with an emphasis on carbohydrates and local vegetables. Some chicken and meat will be served. The water is thoroughly boiled and purifiers are not needed.
Spring days are warmer and longer but the air is hazy at lower elevations.
The fall is colder at night, the days shorter, but views are clearer. Both periods are dry. These are highest mountains in the world, and exceptions to the norm can happen. It is traditional to award a gratuity to each of the staff at the end of the trip. This gratuity is part of your land price.