求翻译：Our baby sleeping bags are made from fine quality fabrics ,are machine washable .They have features of a full length zip for easy changing and are designed for all year round except peak summer .The design allows air to circulate ,keeping your baby at a comfortable temperature throughout the night .Being safe and practical is just two of the reasons why in the UK baby sleeping bags are becoming an increasingly popular alternative to sheets and blankets. They’re also extremely convenient and ideal for holidays .You can use them not just in baby’s bedroom ,but also when visiting friends or on long journeys .是什么意思？

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