睡衣的几种表达：
pajamas
PJs
nightwear

睡衣的材质：
Cotton 棉质的
Cotton is a solid standby since it's a natural fiber that's breathable and lightweight.
棉质睡衣是常备品，它有天然的纤维，透气，轻巧。

Silk 丝绸的
It's very soft with strong fibers and good insulator.
很轻，高质量的纤维，隔热效果很好。

Linen 亚麻的
It's very breathable and can be very durable, but it's wrinkles easily.
透气，耐穿，但是容易皱。

实用表达：
a wink of sleep
没怎么睡觉
I feel tired I just had a wink of sleep.
我好累，没怎么睡觉。

sleep with the fishes
杀人后扔进海里（威胁，现也用于和朋友开玩笑）
If you don't finish the scripts, I will make you sleep with the fishes.
如果你没有完成这个脚本，我就杀了你扔海里。