A method, node and computer program for a client node (100) in a communications system for resetting of timer units, the client node comprising at least two timer units, the method comprising: for each of the timer units: detecting (S100) the timer unit (130) by a timer handling unit (110), registrating (S110) the detected timer unit (130) in a timer inventory (140) by the timer handling unit (110), the method further comprising: determining (S120) by the timer handling unit (110) which of the at least two timer units that expires first, determining (S130) a time T when the determined timer unit at the latest will be reset, and prior to the timer expiring, resetting (S140) at least one of the other timer units (130) with a new reset time based on the time T, thereby enabling longer radio and CPU sleep periods of the client node between reset of timer units.