In the long haul cabin crew arena:
767 aircraft have 4 economy seats blocked off and curtained.
747-300 aircraft have 6 economy seats blocked off and curtained.
747-400 aircraft have 2 economy seats and 2 reclinable crew jump seats plus the overhead crew rest (8 bunks).
The provisions above are mandatory regardless of the sector length.
On long range sectors (> 12 hours) horizontal rest must be provided. This is automatic on the 747-400 and is loaded below the floor in a special freight can on 747-300. Although QF has been blocking 6 rows of 4 economy seats in lieu of the can on Mumbai flights to save freight space.
Long haul cabin crew are entitled to 20 mins off in the first 6 hours and a further 20 mins in every next 4 hours.
All the conditions above are industrial entitlements prescribed in EBA documents. We have yet to secure regulatory conditions like our pilot colleagues.
Hope this helps.