Martin is 6′ 3-4″. We had previous discussion about needing a somewhat longer tent for him. He has such a tent. Should he just bring it and decide what tent to use after we are in Bhutan and meet our guide and know the options?

Generally, we use standard size sleeping bags for trek, in exception case, like if he is taller than we normally consider standard height then we ask our guests to bring his own tent and we will provide ours too and decide which is best suited for him then.