Here's a thing.
I always wear a watch to bed, whatever I've had on during the day. In the past, with Waveceptor watches, I've never managed a sync overnight unless I took the watch off and placed it on a window ledge on the right side of my apartment. (Despite being high up, my windows are heat reflective and this inhibits many radio transmissions like DAB and Waveceptor.)
Now last night I stumbled into bed with my GW-M5600 on, and this morning the watch reports a sync at 5am - definitely a first.
Didn't I read somewhere on here that the antenna in this watch has been relocated? I wonder if there have been other improvements to boost Waveceptor reception?