A fluffy bed duvet set for 5×6 and 6×6 beds typically includes several essential pieces. Here’s what you might look for:

1. **Size Variations**: Suitable for both 5×6 and 6×6 beds.

2. **Pieces Included**: Generally, a 4-piece set includes the duvet, two pillowcases, and a fitted sheet.

3. **Color Options**: Available in various colors and patterns to match your bedroom decor.

4. **Material**: Soft and fluffy material, often made of cotton, microfiber, or a blend, for comfort and warmth.

5. **Durability**: Quality stitching and materials to ensure the set lasts through many washes and regular use.