Vinyl or laminate?

Looking to replace my carpet in my bedroom with vinyl or laminate - removed the carpet and noticed there is a layer of insulation between the concrete (which can be easily removed)

Would it better to fit underlay then laminate so I can retain the sound deadening aspect between me and the apartment beneath ?

Thank you

LVT is much warmer than laminate.
I would always have capet in a bedroom over either though.

If you're in a flat and have neighbors beneath you I wouldn't go for vinyl as they have very thin underlays with minimal sound absorbing. I'd go for a good quality laminate with the best acoustic underlay you can afford

That's down to the wool content - my main carpet is 100% wool and has had beetle problems. But a different mix of materials would be OK so I wouldn't bin carpets just because of past experience.

Is what you call insulation actually underlay? Can you leave it in place?

This ^^^. B&Q have Quickstep packs on 4 for the price 3 occasionally.