Most long haul aircraft have crew rest areas of some type.
Aircraft that have crew rest areas fitted with beds and/or chairs:
Boeing 747 series 400
For example, Virgin Atlantics Airbus A340’s, our aircraft have a special container that secured in place like a normal aircraft baggage/cargo container. The rest container can be accessed through a small hatch in the cabin floor towards the middle of the aircraft (normally near a galley, you pass through a door then down a small ladder). When passing into the rest area (container) there is no indication that it is not a permanent fixture.
The plus points with this container system is when the aircraft is on a short flight (six hours or less normally) the crew rest container can be simply be off loaded saving money by not having to carry as much weight which is not needed.
The negative point is the crew container takes up revenue earning cargo space! If the crew container was not onboard, there would be space for two extra containers of cargo, which can bring in extra revenue on a long and especially ultra long haul flight.
I have been on many long flights which are planned at 12 hours or more, but because of high cargo load figures the crew containers are off loaded.
With the Boeing designed rest area system that is not a problem. On our Boeing 747’s the rest area for cabin crew is towards the rear of the cabin. You enter a door towards the rear lavatories climb some very steep steps which lead you directly to the rest area (which is above the passenger cabin and below the tail).
On the Boeing 747-400 the cabin crew rest areas have a number of bunk beds and depending on the design a few seats as well.
On the Boeing 777 the cabin crew rest area as I understand is smaller then on the Boeing 747 series 400. The area normally has three beds and two seats and is situated towards the rear of the cabin, above where the passengers sit.
As you can see above on HAWK21M message the pilots on the Boeing 777 enjoy a rest area which is positioned just behind exits 1L&1R above the area which is normally assigned for First class or Business on certain airlines (CO, KLM etc).
Pilots on the Boeing 747 series 400 have a rest area which is to the left of the flight deck. When you enter the Boeing 747’s flight deck, there is a door on the left.
On the Airbus A340 500 & 600 have an area at the rear of the flight deck, which has a bunk bed inside This area is behind the flight deck and in front of the cabin service area by doors 1L&1R. Unlike the Boeing 777 it is not in the ‘ceiling’ of the cabin.
The good points of having the pilot’s rest area doors in the flight deck means they never need to leave the flight deck, which increases in flight security.
Depending on the airline specifications and requirements an IFE terminal can be added to the FD
rest area. Certain airlines also specify up to two additional screens which can display navigation information along with vital or urgent information about the aircraft status. Radio transmissions can also be monitored from this area. This system is handy when on an ultra long haul flight.
Cabin Crew are also treated to some goodies. They normally have an IFE terminal per bed or seat. Most rest areas (for the airline I work for) also have mood lighting, as featured in our Upper class cabin. The beds in these areas are really comfortable (yes, better then in any First or Business class). Duvets are normally issued along with PJ
As far as I know the Airbus A330 series 200 can take advantage of the crew container system, but I am not aware of any airlines that use it with this type.
Boeing Airbus A300, A310, Boeing 757 & Boeing 767 do not have crew rest areas. Airlines normally pre-assign seats for the crew to rest in on long haul sectors. On certain airlines they sometimes have a curtain system when stops passengers from looking in, but its hardly private and I know our policy is we have to remain in full in-flight uniform keeping talking or laughing to a minimum.
Even though aircraft such as the DC10 and L1011’s had galleys in the cargo hold area they did not have any crew rest areas like the Airbus or Boeing now have.
The introduction of the Boeing 747 series 400 meant for many airlines they had to create space for crew to rest in. The 400 series could fly for over 14 hours and pre assigning passenger seats for cabin crew to use would be costly on such services.
As time continues both Airbus and Boeing will continue to design areas for crew to rest which does not take up passenger revenue earning space.
For now I think both Airbus and Boeing have done a great job at creating space where there is very little!