Preparation

Where to sleep?

1. By plan I will spend nights during the trip mostly in the homes of local people. However, there is a parts of the route where no one lives. Therefore, the tent is definitely needed and because you have to carry it on yourself, I would like its weight to be within reasonable limits.

So I've bought the Big Agnes tent. At first impression - a wonderful option. Weight - 2.4 kg. Placed quickly, spacious inside. According to the description, it should be warm enough at the heights of the route. An additional nice little thing is a bunch of pockets and eyelets inside. Almost all equipment can be suspended. Two vestibules, two exits. In general, at first glance, very good thing.

No signs of condensation inside in the morning. True, I spent the night in warm weather and all the windows of the tent were open. Condensation collected only under the upper tent. 

2. Sleeping bag. After some thought, I came to the conclusion that the best option would be a construction of two sleeping bags: an external synthetic sleeping bag for temperatures up to 0 degrees and the second, a downy sleeping bag inside. The first half of the route can be done with one synthetic sleeping bag. And near to the Everest region, add a second, because I expect that all really cold nights await me in the last two months of the journey. 

I've got the Cat's meow from The North Face as external sleeping bag. It weighs 1.1 kg, while keeping the temperature up to 0 degrees. On the very first night, I realized how they managed to achieve such temperature indicators with such a weight: the sleeping bag is significantly thinner in its lower part than in the upper one. But this is quite normal when using a warm mat. And if the problem you can put clothes under you. 

3. Mat. I chose a foam mat from Therm-a-rest. I tried it - really softer and warmer than standard Decathlon mat. Nevertheless, I think that for the second part of the route, you should also take with you an inexpensive inflatable mat. All the same, if you have to spend the night in the snow, it is better to have extra warm mat. 

How to solve the problem of cooking during long autonomous transitions?

I studied several options: spirit lamps, gas burners, dry fuel, firewood. All options are not ideal for the Himalayas: the first three options add huge weight to the backpack for a long hike. In fact, only the option of firewood using a mini-oven remains.