replace dummy. 2.10, 5, 5.15, 5.45, 6 etc etc
Holls - why don't you feed?
Replacing dummy is fine for the 2.10 wake up there, cos he settled afterwards. Likewise I probably would do dummy for 5.00 and 5.15 but if still unsettled then a feed would work.
Don't worry it won't be forever. It is likely to be the 4 month sleep regression. Last week, at almost bang on 4 months my DD started waking early morning (somewhere around 5am, give or take an hour) and wasn't being settled by the dummy. So have started offering a feed and she settles straight back to sleep afterwards.
This is after her sleeping through until 8am without any night feeds since 8 weeks old. She's increased her daytime feeding significantly this week too - so the 4 month regression must be hard for those breastfeeding and need to up supply.
I'd guess that she'll need a week or two to re-establish a new feeding routine through the day so that the early morning feed will drop all by itself.
I also cannot understand why you have him in a different room to you if you are getting up in the night still (even to replace dummy). I guess I am far too much after the easy life and value my sleep too much. But dummy re-insertion for me means reaching arm out into bedside cot at first murmur without even opening my eyes.