Thursday Morning Riddle

I’m a friend who stays close; I’m a high rate of speed;
I’m a sound kind of sleep; I am cash made with greed;
I’m attaching securely; declining to feed;
And a clock with a time beyond what it should read.

Who am I?

UPDATE: Riddle solved by Asher. See comments for answer.

2 Responses to “Thursday Morning Riddle”

  1. Asher Says:

    Fast

  2. Bill Says:

    That was FAST. Way to go, Asher!

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