Most owners discover the problem after only a few months of operation. Washing your own linen between bookings takes time: a wash cycle, drying, ironing, not to mention the unexpected — a stubborn stain, a tight booking that leaves barely two hours between stays, a machine breaking down on the day it must not. Industry professionals recommend a simple rule to avoid running out of stock: the 3x1 principle, that is a minimum of three complete sets per bed, so a clean set is always available while another is being processed. This rule does not apply only to sheets and duvet covers: it applies to all linen needed for a full turnover — bath and hand towels, bath mats, kitchen towels, and where relevant tablecloths and placemats for properties with a equipped dining area. A clean double bed is not enough if towels or the bath mat are missing at check-in: the guest judges the whole property, not only the bed. The number of towels to plan depends on occupancy and the standard aimed for: professional recommendations generally range from one to two bath towels per person, a number that can be raised for high-end properties, while bath mats and tea towels follow a logic per bathroom or equipped kitchen, independently of the number of beds. This minimum of three sets, valid for each linen category, should be increased for properties chaining single-night stays or very short stays: the more frequent the turnovers, the more linen processing time (wash, dry, iron, or professional laundry lead time) weighs in the calculation, and the more extra sets you need, across all categories, so you never run short at check-in. Without this safety margin, the slightest tight booking can turn into a last-minute cancellation — one of the worst scenarios for a listing’s reputation on the platforms.