First weeks in pressurised housing

Pressurised housing is not difficult. It is unfamiliar, which is a different problem and a more durable one.

Sleep

The cabins are smaller than you expect, the lights are warmer than you expect, and the air has been through a lot of filters. Most arrivals sleep heavily for the first ten days and then less than usual for two or three weeks. Both phases pass.

Light

The shelf habitats run a thirty-hour cycle, deliberately offset from surface time. This is for crew rotation reasons that pre-date the migration. Your body will adapt. There is no point in fighting it.

Sound

There is always a low background hum from the pumps. You will stop hearing it at about day four. The day you notice you have stopped hearing it is the day you have arrived.