Depends of slave grade game want you to made his/her live more comfortable.
Game have 2 items that offers luxury, lingerie (silk boxers/lacy underwear) +5 and golden ring +10.
There are 5 slave grades with luxury demands:
Slave - 0
Poor - 5
Commoner - 15
Rich - 25
Noble - 40
Penality for not providing luxury for slaves is:
if not enough luxury and slave owned for more than 7 days outside of jail:
(Slave demands - what she get)/2.5 = penality to loyality
(Slave demands - what she get) = penality to obedience
There are 3 luxury related traits:
Spoiled: 2x luxury demands (can be instantly remove with Elixir of Clarity)
Ascetic: 0.5x luxury demands
Grateful: 0.0x luxury demands (with this trait all
You have this options to give slaves more comfort in mansion:
private room - +10 luxury and +5 luxury for every upgrade in mansion furnishment (2 upgrades)
place in master bedroom - +5 luxury and +5 for every upgrade in mansion furnishment (2 upgrades)
Customization menu:
Better food: cost 5 food daily and gives +5 luxury
Personal bath: 2 supplies daily and gives +5 luxury
Cosmetics: +5 luxury for 1 supply
Pocket money: cost 10 gold daily, +10 luxury
thanks for Discord user Ankmairdor for big dose of info from data files allowing me to fill like 60% of all this