I'm looking for the name of a short story about family on space flight.
The boy somehow stayed out of suspended animation, possibly out of curiosity.
At the end, with "empty eyes" he answers what it was like.
This may be 'The Jaunt' by Stephen King, first published in 1981 then later in the compendium Skeleton Crew. It is a teleportation process, not starflight, and the passengers are simply put under mild anesthesia to render them unconscious for the transfer. The boy is permanently traumatized (in graphic King fashion) due to the fact that perception of time is nearly infinitely magnified while the brain is being transported.