Edel I definitely think if you're happy with your current set up then leave things as is. If it aint broke, don't fix it!
I don't understand why some (albeit well intended!) people can have such an obsession with how other people's kids sleep!
I had similar advice proferred to me about our daughter, except I was advised to give her Phenergen.
At the time I didn't realise what it was, it's supposed to be a fairly strong antithistimine. It's also the drug they gave me in hospital to put me to sleep when I was having mild contractions
Definitely not something you'd want to use as a sleep aid for a child.
The person that recommended it to me had been using it for their own child too when he was about a year old.
What bugged me most about that offer of advice & others was that I'm perfectly happy with our set up.
When our daughter slept in her own room, she would wake several times during the night regardless of what technique we tried.
When she sleeps in the room with us, we get a solid 12-14 hours sleep.