We have a 3month old son who only sleeps on his tummy. We aren't very good at getting out in the morning. And DD needs to have a nap in the afternoon and will only do so in when in her buggy in a quiet room or on a stroll. I think I can get the back of the tandem down flat enough for DS to sleep on his tummy. Though this isnt ideal. Any ideas what we can do/where we can go? We live in Croydon but we dont mind a little drive out.