We thought that maybe it's cold for you to sleep during the night, so we made this sleeping hat for you in our Minimal Nightcap cursor pack. This blue nightcap is a cloth cap worn with other nightwear as pajamas, a onesie, a nightshirt, or a nightgown. From the historical perspective, these hats were frequently worn in the British Isles and Scandinavia before central heating was functioning, as temperatures would fluctuate in the winter months. However, they were worn all year round.