Deep sleep: Sink into a deeper sleep with these pillows. Extra comfort: Spiral fibres provide extra gently support and comfort an indulgent night’s sleep. Hollow fibre: Generously filled with hollow fibre. Comfort level: Use one pillow for soft comfort or two pillows for medium comfort. Size: 69cm x 46cm. Luxury pillows: Get a Silentnight six pack of deep sleep luxury pillows.