This pattern is a jumper in the streets and a sheet in the sheets ;) how cosy! Okay, it's more of a lovely lacework scalloped blanket than a "sheet" but it would be fab as a throw on a bed or worn as a shawl on a warm but breezy day.
This is originally knitted in the stunningly, stupendously, unbelievably soft acrylic King Cole Beaches DK, which comes in a variety of solid, variegated, and self-striping colourways.
I'm physically incapable to not recommend the King Cole Bamboo Cotton DK for any and all lacework because it of its silky-smooth texture giving it a light shine that's just stunning for showing off fancy stitching like in the blanket. For a more matte finish with a larger variety of colours, the King Cole Cottonsoft DK and its variants would be perfect as well for a breathable, cool fabric for summer.