Sleep tattoo(睡眠纹身)指睡了很长一段时间醒来后,睡觉时盖的毯子、穿的衣服或者碰巧在床上的任何物品在身上留下的印记,多见于胸口、脸部以及胳膊。
For example:
例句:
Person 1: I just had the best nap of my life!
刚睡午觉起来,睡得可舒服了!
Person 2: What’s that all over your chest?
你胸口那儿怎么了?
Person 1: Oh those are just some sleep tattoos from my blanket.
哦,那是毯子留下的睡眠纹身。