Check the bedding label, condition and programme suitability separately. Heavy hair, loose filling or damaged backing can make the load unlike everyday clothing.
Understanding this situation
Remove loose debris by an appropriate safe method before washing, and avoid overloading with a bulky saturated item. A product marked washable can still exceed the capacity or fabric treatment allowed by a particular programme.
A useful next step
Follow the manufacturer's cleaning and hygiene guidance for the bedding. Inspect accessible machine areas afterwards as the manual permits. If hair or debris accompanies a stopped drain or unusual noise, report it without attempting to dismantle the pump or forcing further cycles.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.