Yasin uses an amby hammock. We've had a few sleepy issues but he loves his hammock.
Its easy to assemble and it comes with a carry bag so you can take it travelling. Also its not very heavy so its easy to push around which I find usefull because I can push it into a quieter room whan I want to vacuum.
It cost about $300 for the whole setup plus a mozzie net and sheets. Its a bit more expensive than a bassinet but he can use it for much longer.
I bought it online and it was delivered really quickly.