1. A straw mattress or a mattress filled with straw or similar material.
Usage: Also spelled 'palliasse' or 'paliasse'; Chiefly British

Examples

• The old cottage had a simple paillasse on the bed frame.
• She slept on a paillasse stuffed with dried grass and straw.
• The soldier's barracks provided only a thin paillasse for each man.
• A paillasse was a common bedding choice in rural areas before modern mattresses became affordable.