I am 5 months pregnant with my second baby and I've just started looking into the options of double buggies. The choice is a bit overwhelming so wondered if anyone would recommend one that they have found works particulaly well. Tandem or side by side? DS1 will be 20 months when the baby is born and still sleeps a fair bit. I would like a buggy where he can also lie flat if he needs to sleep when we're out. (Some of the tandems don't seem to allow for this.)