sleepyhead
noun [ C ] informal uk/ˈsliː.pi.hed/ us/ˈsliː.pi.hed/
贪睡者，瞌睡虫（尤指儿童）
a person, especially a child, who is tired and looks as if they want to sleep
[ as form of address ] Come on, sleepyhead, let's get you to bed. 快点儿，瞌睡虫，我带你上床睡觉。