How to delete sleep timer on my Philips clock radio?

1. Set Radio/Alarm to the Off position.
2. Set the sleep time as follows:
3. Press Sleep to set the sleep time up to 59 minutes. Hold down Sleep and repeatedly press MINto set the sleep time from 59 minutes downwards
4. Hold down Sleep and press HR to get one more hour sleep time

To cancel the sleep timer, Press Sleep Off.