how the cabin looks was changed in each different type of 737 (classic and next generation). the cabin design of the 737 original was changed 737 classic using designs from the 757. designs from the boeing 777 were used to design the cabin for the next generation 737. the newest cabin design is called the sky interior. it has curved walls. it also has redesigned windows. the sky interior has more headroom and led mood lighting. overhead bins which move have been installed. these bins are similar to the bins on a 777 and boeing 787 dreamliner. they have more space for luggage than the other designs. the sky interior is also designed to make the cabin less noisy by 2–4 db. the first 737 with the sky interior was delivered to flydubai in 2010. malaysia airlines, tuifly and continental airlines have also ordered 737s with the sky interior.