Grobags for us too. DD started using them when we moved her into her cot at 10 weeks. She loves them and so do we. They make things a lot easier and safer, now that she's a tummy sleeper (since she started rolling about a month ago).

I love that Grobag have a 'what to wear' guide for their bags depending on the room temperature. We have a Gro Egg thermometer and our monitor also has a thermometer. We try to keep DDs room at around 23 degrees during this warm weather (so aircon on or window wide open) and DD wears a 1 tog bag with either a short or long sleeved onesie. She has a .5 tog (so like a sheet) for day sleeps on warm days.

HRU