Seat extenders

[Julietho]

Hi has anyone tried and toddler seat extenders on a jet 2 plane? Inflatable, the hammocks or even the extendable board one?

I know will make 4 hr journey a lot easier and less toys to pick up but I can't find if they're definitely allowed?

We used an inflatable cube type one when my son was a toddler and we were going to Australia. It was nicer for him to stretch out and sleep on. I don't think I'd bother for just a 4 hour flight though.