Thin cover, thick filling
A surface may feel dry while thick cushions or deep seams still retain moisture. Ask which areas need particular attention. Check several places rather than only the front edge of a seat. This matters especially for chaise sections, back cushions and mattresses.
Plan ventilation
A crowded room and cushions pressed together restrict air circulation. Keep treated surfaces open and follow the cleaner’s advice. In winter, coordinate ventilation with normal heating; do not place upholstery directly against radiators or use concentrated heat.
Air movement is not a deadline
Air movement can support drying, but it does not replace material assessment or effective extraction. The presence of a fan does not establish an exact time when furniture will be usable. Ask for an estimate for your circumstances and allow a buffer.
Avoid a tightly timed booking
If the sofa bed is needed that evening or guests have a fixed arrival time, mention this before booking. Another appointment may be more practical. Only cover, reassemble or heavily use upholstery after it has dried fully; contact the cleaner if moisture persists unexpectedly.