Irregular Sleep Pattern beautifully soft bold + colourful organic cotton quilted hot water bottle covers come complete with a quality rated German Sanger natural rubber bottle, and are available in 4 variations that feature the prints from our current collection. They’ve rounded off the edges to create an unusual / irregular shape - They don't know why this hasn't been done before - it looks great, and is practical too! Perfect for keeping warm on cold days in bed, on your sofa or even on the move... If you don't want the rubber bottle, use code nobottleplease at checkout and save £6 The covers are washable at 30 degrees