Using a small fabric, it is possible to create a 'wake up light' alarm clock that fades in the lights. It would be easy to extend this to include some audio, multiple times, longer fade-in time, etcetera!

<?xml version='1.0' ?>
 
<fabric author="Tommy van der Vorst" title="Alarm clock" version="2">
	<group id="input" direction="in">
		<connection type="udp" />
	</group>
 
	<group id="leds" direction="out">
		<discover type="ep">
			<requires>
				<supports method="/ep/basic/color/set"/>
			</requires>
		</discover>
	</group>
 
	<variable id="h" type="int32" value="7" />
	<variable id="m" type="int32" value="0" />
	<variable id="enabled" type="bool" value="0" />
 
	<rule id="set" name="Set alarm">
		<pattern>/ep/basic/timed/set</pattern>
		<parameter id="enabled" type="bool" friendly-name="Enabled" default="1" bind-value="enabled"/>
		<parameter id="hours" type="int32" friendly-name="Hours" min="0" max="23" default="7" nature="discrete" bind-value="h"/>
		<parameter id="minutes" type="int32" friendly-name="Minutes" min="0" max="59" default="0" nature="discrete" bind-value="m"/>
 
		<script>
			if(!globals.exists(var="timer")) {
				globals.timer = null;
			}
 
			if(globals.timer!=null) {
				globals.timer.cancel;
			}
 
			if(message[0]) {
				state.enabled = true;
				state.h = message[1];
				state.m = message[2];
				var now = new Date();
				var offset = 1;
				var ring = null;
 
				if((state.h &lt; now.hour) &amp;&amp; (state.m &lt; now.minute)) {
	      	                 	 var tomorrow = new Date(now.absolute + (3600*24));
        	                        ring = new Date(day=tomorrow.dayOfMonth, month=tomorrow.month, year=tomorrow.year, hours=state.h, minutes=state.m, seconds=0);
                                }
                                else {
                                        ring = new Date(day=now.dayOfMonth, month=now.month, year=now.year, hours=state.h, minutes=state.m, seconds=0);
                                }
 
				var ringUTC = new Date(ring.absolute - offset*3600);
 
				print("Enabling alarm clock at "+state.h+":"+state.m+" GMT+1 "+ring.dayOfMonth+"-"+ring.month+"-"+ring.year+" @ "+ring.hour+":"+ring.minute+":"+ring.second);
				globals.timer = schedule(ringUTC, delegate {
					if(state.enabled) {
						send("leds", new Message("/ep/basic/color/fade", #255, #255, #255));
					}
					else {
						print("Alarm, but was cancelled");	
					}
				});
			}
			else {
				state.enabled = false;
				print("Turned off alarm clock");
			}
		</script>
		<description>Sets the time for the wake-up light</description>
	</rule>
</fabric>