Koingo Software today released Alarm Clock Pro 6.1, the latest version of the company’s multimedia alarm clock and reminder utility. The update adds the ability to wake your Mac from sleep after a specified duration. “You can now put your Mac to sleep, and tell it to wake up just before an alarm is going to ring. This way, you won’t have to leave your machine on all night long.” The update is free if you have purchased Alarm Clock Pro within the last six months, otherwise it is a US$5 upgrade. Alarm Clock Pro sells for $15.95 to new users.