In his sleeping bag he’ll be as snug as a bug in a rug.

躺在睡袋里他会感又舒适。

A good sleeping bag is an essential part of every campers equipment.

一个完好的睡袋是每个露宿者必不可少的装备。

I snuggled down in my sleeping bag.

我舒舒地躺在己的睡袋里。