Low level implementation of sleepy mesh network

[l091]

Some kind of functionset like:

setUpSleepyMesh(channelnumber,groupnumber,sleeptim e,awaketime,gracetime)
-> sets up the sleepy mesh for the first

setGroup
-> changes the sleepy group with the node has to synchronize with

setCanLead
-> changes the fact if a node can lead the sleepy mesh group in the network

override sleep(mode,time) with sleep(group)
->makes the node try to join a specific sleepy mesh group and sleep synchronously with that group.

I believe that synchronized sleeping is not an application level problem. But should be implemented low level. This would save a lot of trouble