Make the bed for a real body
Sleep on it yourself for one night before anyone visits — it is the quickest audit there is. You will discover the mattress dips, the duvet is too hot, the pillows are flat, or the headboard knocks against the wall when you turn over. Layers help more than a single heavy duvet: a lighter duvet plus a folded blanket at the foot lets a guest adjust their own temperature without having to ask you for anything at 1am.
Two pillow firmnesses is a small kindness worth doing, and so is a spare blanket left visibly folded rather than hidden in a wardrobe. If the room is cold, say so and show them how the radiator or heater works, rather than hoping they'll work it out. People rarely admit to being cold in someone else's house.
The hotel habits worth stealing, and the ones to ignore
Steal the hooks. A hook on the back of the door for a coat or towel does more than a wardrobe full of mismatched hangers, though a few decent hangers help too. Steal the small information note: wifi password, what time you usually get up, where the bathroom light switch hides, whether the front door needs a key from the inside. Written down, it saves a guest from asking four separate small questions and feeling like a nuisance.
