If you want to hire one to try in case bubs doesn't like it and you spend alot of money, I just called Hire for Baby today and they hire out for 1 week as a trial and it is $33. If you then want to extend hire for 3mths it is $88 minus the $33 you have paid! Or you could buy one after that week if you know bubs likes it.
They are the Amby hammocks that they have. HtH