I'm glad you liked it. Your stats are probably yellow before you go to sleep. That's why the stats turn red when you sleep and trigger the hitman. Even if you don't have any protection items, if you keep your hunger, thirst and sanity stats high, you can hide under the bed and survive when the hitman arrives.
Chance of a Hitman Visiting Your Home:
Ordinary: 5% chance
Low thirst: 10% chance
Low hunger: 10% chance
Low mental health: 10% chance
Open window: 100% chance
Closed Vpn: 100% chance
Virus scan not performed: 100% chance
Incorrect request: 100% chance
Extra- The window lock might break: 5% chance
Extra- The hitman might introduce himself as a delivery person: 5% chance