sleepily的意思是想睡地；静寂地；困倦地；瞌睡地。
sleepily的名词形式是sleep。形容词有sleepy（想睡的），sleeping（躺卧的），sleepless（失眠的）。
例句：
1、When he had finished the last drop, he grunted and walked sleepily into the box. Fern peered through the door.
等喝完了瓶里的最后一滴牛奶，威尔伯发出满足的哼哼声，睡意绵绵的走进它的盒子。
2、Remember, it is better to remain in a state of honest, if difficult, doubt than to slip sleepily into a decision that you later regret.
记住，保持一种诚实的态度，如果有困难就保留怀疑，这也比昏昏然落入一个你以后会后悔的决定要好。
3、Sometimes, early in the morning, we reach, sleepily, for our toast. It slips through our fingers and falls, butter side down, on the floor.
有时候，清晨，我们睡眼惺忪地起来去拿面包，但是下一刻，面包从指间滑落，奶油朝下，掉在地上。
4、I walked over to it, and took a peek. There was a blanket there, waiting for a child to sleepily hug it.
我走到床边瞥了一眼，看到里边有一块毯子，像是正等着孩子在其中安睡似的。
sleep、sleepy、asleep有什么区别：
1、Asleep
The old man was asleep on the sofa.老人睡在沙发上。
辨析：作形容词，在句中只作表语或宾语补足语，不作定语，表示睡着了的状态，意为“睡着、熟睡的”。
2、Sleepy
She is so sleepy that she can hardly keep her eyes open.她困的几乎睁不开眼睛。
辨析：作形容词，一般不用于被动结构，接反身代词作宾语时，可接形容词充当补足语的复合宾语。在句中作表语或定语，表示“困倦的、打瞌睡的、懒散的”的意思。
3、Sleeping&Sleep
The sleeping boy is her son.那个睡着的男孩是她的儿子。
They could not sleep because of the heat.由于天气热他们睡不着。
辨析：sleeping是现在分词，作定语修饰名词时，表示“睡着”的意思，它与其修饰的名词具有逻辑上的主谓关系；sleep是“睡觉”的意思，作动词用，常指熟睡、睡着了。