Top Definition
The act of forming an erection while you sleep.
Ex. I had a sleep number last night.
by Mr.Dixiepride1234 June 05, 2011
1 more definition
number of people someone has slept with
You just made my sleep number four
by Sapphire Reign June 20, 2007

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.