noun. a Morning Head cap is a device to fix bed hair in seconds. It consists of a thick shower cap with an absorbent material on the inside. You add water, put it on your head and then your hair is wet. You can style your hair as if you just took a shower.
I shower at night and used to wet my hair in the sink before work. My wife gave me morning head for my birthday, so now my mornings are much faster and easier.