A mod kit inserts between the seat cushions and the seat structure allowing the passenger to switch from sitting mode to sleep mode using his body motion.
Cabin passenger density is unchanged. Seat status modifies individually to the passenger wish, not affecting his neighbours
LSEAT retrofit kit is adaptable to any seat type on any commercial airliner. Avoiding mobile cushions costly to management, crew has no worry on flight rotations.
Adapting an STC per seat type and aircraft LSEAT is a small investment with a pay-back below three months, becoming then a large ancillary revenue for the airline.
LSEAT STC's and/or minor modifications are compliant with FAA and EASA standards