I.down1[美 daʊn, 英 daʊn]副down often appears as the second element of certain verb structures in English (back down, clamp down, tone down, etc). For translations, see the relevant verb entry (back, clamp, tone, etc).
The current system seems to leave little option but to bunk down in the office which isn't the end of the world -- but does seem like an unusual solution.