Night mode
Most televisions and soundbars have a night or dynamic range setting that lowers explosions and raises dialogue.
Warm screen
A warmer picture setting or your device's night light is easier on the eyes late at night.
Sleep timer
Many televisions have a sleep timer that switches off after a set time, useful if you tend to doze.
Headphones
Wireless headphones let you watch at full volume while the house sleeps.