Loves his sling...hates the pram! Any advice?

[LuluHB]

I have the Mountain Buggy pram, and bought the bassinet for that. My DD was in it I think 3 times -she has reflux and so hates lying flat. Like your bubs, she loves her sling. I put the "normal" pram bit back on and raised the back a little so it wasn't totally flat and she loved it.

[Emma27]

I think my baby also has reflux so thats also why he doesn't like laying down. I wonder if I can raise the pram into a sitting position for him? I tried but the harness doesn't seem tight enough.